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Photo library created by a number of different departments within the Post Office, including the Public Relations/Communications department.

This series comprises accounts of British packet services and overseas posts, including records of agents and postmasters, packet stations, and packet boats. The accounts cover income, expenditure, salaries, allowances and disbursements.

POST 114 comprises Acts of Parliament relating to Post Office business covering the years 1657-1986. Parliamentary warrants, treasury warrants, details of parliamentary debates, memoranda and related reports can also be found within this class. The class is thematically separated into 24 Sub-Series' (which in turn are organised chronologically) covering a wide range of legislature, from major Post Office Acts that established such historic privileges as the state monopoly of postal communications, to numerous acts of a less celebrated nature, such as Road Repair Acts or Electric Lighting Acts. A number of important Acts can be found in Sub-Series 1 'The Establishment of the Post Office and Postage Rates', including the Post Office Acts of 1657 and 1969. Reports, policy reviews, various bills and other papers of a similar nature are gathered in Sub-Series 2 'Growth and Expansion of the Modern Post Office'. These records cover the years 1951-1986. All of the major branches of business that have been under the control of the Post Office during the nineteenth and twentieth centuries are represented in this class, including: telegraphs and telephones (Sub-Series 7); savings banks (Sub-Series 12); pensions (Sub-Series 15); and National Insurance (Sub-Series 16), amongst much else.

This Post Class comprises reports, minutes, papers, leaflets and newsletters produced by Post Office Advisory Councils. These were external bodies set up to liaise with users of the Post Office, to monitor and review the performance and activities of the business and advise the Post Office on matters of mutual concern to the customer and the business.

This series comprises material relating to the introduction and operation of agency services provided by The Post Office. It covers: the payment of Old Age Pensions at post offices; the sale of Health Insurance and Unemployment Insurance stamps; the floatation of the 'War Loan', in 1915, to help finance the war; and the payment of money due to public corporations through The Post Office.

This series comprises material relating to Post Office services supplementary to the core activity of the business. It consists of reports, minutes, correspondence and memoranda relating to the introduction, operation and development of individual Post Office ancillary services, their profit and expenditure, recommended improvements and alterations, and information sheets and guides to the services.

Contains some pieces originally in POST 22.

Papers of the Post Office Investigation Department (POID), consisting of reports, instructions, memoranda, annual reports and research notes.

This series consists of records of the Public Accounts Audit Commissioners' checks on GPO annual accounts and the Accountant General's checks on accounts received from agents and postmasters in the first half of the 19th century. Also included are various reports and other papers relating to financial systems, methods of accounting and collecting, collating and presenting business statistics in the Post Office.

This series relates to conveyance of mails within the United Kingdom and Ireland by sea. The majority of records are on the Irish and Scottish packet services, with a few contracts for mail services to the Scilly Isles, Lundy Island and the Isle of Man, and the Channel Islands, placed at the end of the series.

This series consists of annual reports of the Contracts Department, reports, correspondence and papers relating to the organisation, staffing, functions, policy and review of procedure of the Contracts Department and of contracting functions.

This series relates to the operation of counters business and services. The majority of the records relate to the policy on the establishment, closure and up-grading of sub-offices and the review of the scale payment sub-office system.

This series consists of reports, memoranda and accounts relating to the organisation, structure, functions and operations of Post Office factories and the Factories Department.

This series consists primarily of 'proof books', that is bound volumes and files containing specimen impressions of new date, machine cancellation or other handstruck stamps (both steel and rubber) for postal use, authorisations and instructions for use, handstamp destruction records and historical summaries of machine cancellations.

These two main collections of proof books have substantial gaps, notably, for steel stamps, for the period after 1821, and, for rubber stamps, after 1831. It is believed that the proof books for these periods were lost in the major fire which occurred in 1957 at the Supplies Department, Mount Pleasant, where these records were once housed. Regrettably, when the surviving volumes in these two collections were rebound in c1960, the original volume numbers were lost, and new artificial numbering sequences were given to the newly-bound volumes. This destroyed the evidence once offered by the original bindings, making it impossible now to determine exactly what has been lost from the original series.

This series consists of a series of quarterly accounts of salaries and allowances due and payable by incidents to the officers, clerks and tradesmen employed by the General, Twopenny and London District Post Offices (the Twopenny Post was replaced by the London District Post in 1844). Items 6/4-6, covering 1794-1799, also include separate quarterly accounts of tradesmen's bills and incidental warrants paid out of the revenue of the Bye and Cross Road Letter Office. Accounts cover a wide variety of items and are arranged under general subject headings, such as 'pensions', 'packets', 'tradesmen' and 'rents'. Entries include what the bill is for, name of person owed and the amount. The date of the Treasury warrant authorising payment is often included at the end of each quarterly account. Volumes are not indexed. The accounts include bills for:

• Pensions, salaries and allowances to chief and senior officers, clerks, sorters, messengers and servants working in London headquarters departments, including offices of the Secretary and Accountant General, and the Foreign, Inland, Express, Mail Coach, Dead Letter, Ship Letter and Bye Letter offices; packet agents; surveyors; postmasters inspectors of mails, letter receivers and carriers and packet ships; commanders and mates of packet ships, or their widows; letter receivers and carriers in London; and mail guards

• Expenses for mail conveyance by sea, including costs incurred by packet ships operating from Falmouth, Harwich, Dover, Whitehaven, Donaghadee, Weymouth, Milford Haven and Holyhead, and in the West and East Indies, notably hire charges, lighting dues, arms and ammunition stores, wages and victualling for captains, officers and crew whilst at sea, out of employ or while the ship is undergoing repairs; and ship letter mails

• Expenses for inland mail conveyance, notably for payments to mail coach contractors; road, bridge and ferry tolls; supply and upkeep of fire arms, time pieces, mail bags and mail guards uniforms; mail coach maintenance; and railway and steam packet company charges

• Compensation for abolished positions or duties

• Items supplied or work done by tradesmen

• Legal expenses notably relating to investigation, detection, capture, and trail of felons

• Rents, taxes and rates for offices in London

• Stationery printing costs

• Transit postage and tonnage dues to foreign post offices

• Travelling expenses, particularly surveyors'

Item 6/11, covering 1805-1809, is different to the rest of the series. It contains certified accounts of the quarterly salaries and allowances paid by incidents upon which the Civil List deduction, or tax, of six pence in the pound is chargeable. Each account lists the 'salaries' and 'incidents' of individual officers and clerks at the General Post Office headquarters in London, including the Postmaster General, Secretary and other senior officers, and the total duty payable each quarter.

These accounts probably originate from the office of the Receiver General, who was in charge of all moneys received and paid out of the revenue of the Post Office.

This Post class comprises material concerned with postage rates in the form of reports, correspondence relating to alterations of postage rates and franking privileges, postage rate tables based on individual post towns both inland and overseas, and House of Commons journal extracts covering franking privileges.

This class comprises reports, papers and correspondence relating to the establishment, development and operation of Britain's Inland Letter Post service, spanning the period from 1635 to 1989. At present, POST 23 is divided into 14 Sub-Series, containing some pieces originally in POST 22. There is a small amount of material that relates to seventeenth and eighteenth century developments (see Sub-Series 1 'Establishment and Introduction of the Inland Letter Post' and Sub-Series 5 'Introduction of the Penny Postage'). However, the majority of the records held in this class relate to developments that occurred in the nineteenth and twentieth centuries, which was the period in which a great expansion and modernisation of the inland letter service occurred within Britain. For the nineteenth century, there is interesting general information in Sub-Series 2 'Inland Letter Post, General' and, in Sub-Series 3 'Missing Letter Branch Case Papers', there are over 50 files of records created by the Missing Letter Branch, who investigated mail thefts between 1839-1859. The largest group of records within this class for the twentieth century is Sub-Series 8 'Two-Tier Inland Letter Service, Correspondence and Reports' which relates to the substantial changes that occurred from the 1960s that accompanied the introduction of a first class and second class postal service, amongst other changes that further modernised the system. Other than Sub-Series 14 'Seditious, obscene and libellous publications sent through the post' which comprises records for the years 1876-1927, the latter half of this class (Sub-Series 9-13) is filled with reports, business plans and material related to other significant developments that have occurred within Britain's letter post service from the late 1960s to the late 1980s.

This series contains historical accounts, annual, financial and other reports, letter copy books, minutes and correspondence on the establishment, operation and development of the money order and postal order services. The series also contains records on the prevention and detection of fraud, the use of postal orders as currency in wartime, and information on agreements with other Empire or Commonwealth countries for the sale of British postal or money orders in their territories.

Reports, correspondence and memoranda relating to the introduction, implementation, policy and operation of the inland parcel post service. Some pieces relate to the introduction of both the inland and overseas parcel post.

This series relates to the introduction and implementation of the registration service, the compulsory registration scheme and compensation for the loss and damage to registered mail.

It also includes items relating to the Recorded Delivery Service and other Special Delivery Services designed for sending valuable items or items required to arrive on a specific date and at a specific time via the postal system.

This class relates to the arrangements for circulation of mails in England, Wales, Scotland and Ireland between the 18th and 20th centuries. It comprises three major sections: letter copy books of the Inland Office, 1794-1836, order and notice books of the Inland Office and Circulation Department, 1794-1868, and volumes and files relating to the revision of rural posts in the mid-19th century. The rest of the class is made up of a variety of items on the management of inland mails, including a number of London Postal Service order books, records of the Dead Letter Office, Bye and Cross Road Letter Office and Twopenny Post Office. Due to the incorporation of the Foreign Office with the Inland Office in 1840, a number of records in this Class also refer to the circulation of overseas mails, particularly the orders and notices books of the Inland Office and Circulation Office, (14/289-334).

POST Class 17 contains papers on the mail handling cycle, from collection to delivery. The bulk of material relates to sorting and processing operations. The Class is divided into 19 series. Series 1 and 2 comprise sorting and circulation directories. Series 3-9 generally relate to mechanisation of processing and sorting operations, including development of mechanical aids and the postcode system, letter, packet and parcel sorting machinery, the Post Office Letter and Parcel Post Plans introduced in the late 1960s, new mechanised offices and environmental controls. Series 10-12 concerns the introduction and marketing of postcodes. Series 13 and 14 comprise papers and audit reports on operational organisation and efficiency. The next four series cover local authorities and postal addressing, various sorting methods, processing and sorting equipment, and delivery and collection methods. Series 19 comprises papers relating to general circulation issues.

This series comprises copy letter books relating to administration of the Post Office in Britain and Ireland and, to an extent, overseas.

This series consists of volumes containing a précis of, or reference to, every minute submitted by the Post Office Secretaries, of England and Ireland, to the Postmaster General in London, in relation to all aspects of postal operations and administration within the Irish postal service.

Much of the actual paperwork referred to in these volumes can be found in the accompanying class POST 31 (Irish Minute Papers). For further details of how this class relates to the other report and minute classes, see the following section 'Related Material'.

This series consists of Royal Letters Patent to Postmasters General and Receiver Generals giving the sovereign's written authority to perform their duties. The series also contains a letters patent for the office of Court Post. The patents give: name of appointee; dates of appointment; salary and duties. All have their seals missing but the original seal attached.

This is an 'artificial' series, as maps have been removed from other POST classes and added to POST 21 in order to group them together by format; in addition, maps from numerous different depositors, both internal and external have been mixed together so that it is difficult to find any strands of original order. It has been possible to impose a loose order on the maps by grouping them together by subject as follows:

circulation maps, county maps, town maps, district maps, postcode maps and overseas mail maps.

The majority of the series consists of maps that were commissioned by the Post Office or maps that have been adapted for use in the daily routine of various post office departments.

It includes Ordnance Survey maps which have been annotated to indicate changes to postal boundaries as well as printed town maps, post office directory maps, road maps and hand drawn sketch maps. The maps have been produced using a variety of different methods including lithography, engraving and printing; many of the maps have ornamental cartouches and many are coloured.

Several of the maps in the collection are black and white copies of originals which have not been retained. Unfortunately it is not possible to discern the significance of lines which were colour coded on the original map.

Many of the maps centre on London and there is a sub-series of maps relating to the different postal districts in London, including maps depicting the official postal districts after they were put in place during the period 1857-1858 (see particularly POST 21/772: a reproduction of a map of the London postal districts produced by Richard Weller in 1858, which gives information on the division process). There is also a set of maps from 1948 showing the routes taken by postmen on their daily rounds in the west end of London, which include buildings damaged by bombs during World War Two.

Other maps include postcode maps for areas in Sheffield, Lincoln, Manchester and London; several nineteenth century District Surveyors' maps, some of which show 'armed and unarmed rides' in the various districts and include letters to Francis Freeling and several maps from 'Atlas Universel' (1757) produced by the Vaugondy family [Father and son], depicting various European postal routes and including ornamental cartouches engraved by the Haussard sisters.

This POST class consists of volumes containing a précis of, or reference to, every minute submitted to the Postmaster General from the Secretary relating to all aspects of Post Office administration. There are also separate bound indices to the minutes arranged by different subjects. POST 35/1-6 consists of volumes of minutes from the Postmaster General to the Secretary relating to all aspects of Post Office administration.

Much of the actual paperwork referred to in these volumes can be found in the accompanying class POST 30 (England and Wales Minute Papers). For further details of how this class relates to the other report and minute classes, see the following section 'Related Material'.

The class is divided into four Sub-Series. The date range for almost all of the records in the class is 1792-1921. However, there are three volumes in Sub-Series 3 'Indices to minutes between the Secretary and the Postmaster General' that contain records that cover the period up to 1969 (see POST 35/1699-1701).

The material is arranged in date order within series. All pieces consist of one volume unless otherwise stated.

This series relates to the transmission of newspapers by post and comprises records relating to the franking privilege of the Clerks of the Road, the transmission of newspapers overseas, and the postage rates of Newspaper Post. The majority of the class consists of published lists of newspapers registered at the Post Office for transmission under the Newspaper Post, (POST 24/21 - 24/72). Also included are items relating to the introduction of a rural newspaper delivery service in the 1970s.

This series relates to the establishment and operation of colonial post offices in British North America [Canada], Australia and New Zealand. The records include instructions from the Postmaster General via the Secretary (POST 44/1-12), returns to surveys relating to the volume of mail processed and the costs of running the offices, details of the staff employed at these offices and their duties (POST 44/24-33).

This POST class comprises contracts of agreement between, the Postmaster General and individual persons and shipping companies, for the conveyance of mail overseas by packet boat. The contracts lay down the standards required by the Postmaster General, for example the equipment and maintenance of the vessels, routes, ports of call and penalties incurred by non-compliance with the terms of agreement. The class also includes correspondence concerning applications for tender, papers relating to profits made by particular companies, returns showing particulars of existing contracts, and contracts for the establishment of a packet service between the UK and other countries.

This record series comprises copies (mainly published and submitted to the House of Commons) of conventions and articles of agreement made between the Government and/or The Post Office of the United Kingdom and overseas governments and/or postal administrations, for the exchange of mails and the regulation of these services. The conventions lay down the offices of exchange, despatch and delivery times, weight and dimension limits and postage rates.

POST 46/57 relates to the formation of the Universal Postal Union in 1875.

POST 46/62 relates to the establishment of an Imperial Penny Postage, introduced in 1898 and POST 46/63-65 concerns the payments of the Peninsular and Oriental Steam Navigation Company for the conveyance of mail.

The Packet Minute series (POST 29 and 34) comprise minutes to the Postmaster General from the Secretary to the Post Office, on the Packet Boat and overseas mails services. It began in 1811, at which date those subjects were transferred from the Postmaster General's Minute series (POST 30 and 35).

POST 29 consists of volumes containing a copy of, or reference to, every minute submitted to the Postmaster General, including those which have since been destroyed. POST 34/1 - 105 are indexed. The Postmaster General's decision on each case is also recorded. POST 29 consists of those actual papers which are still in existence (comprising both the original minute to the Postmaster General and the papers leading up to, and following from, the Secretary's submission). It has been produced in two versions, one numerical and the other alphabetical, i.e., set out under subject headings. When requisitioning papers, both the catalogue reference Nos. and the Minute No. should be quoted, e.g., POST 29/4, Pkt 203B/1314.

For details of how this class relates to the other report and minute classes, see the following section 'Related Material'.

The packet report series (POST 39 and 41) comprises reports to the Postmaster General from the Secretary to the Post Office, on the packet boat service and overseas mail arrangements. These are the surviving reports from those listed in POST 41.

POST 39 therefore consists of the actual Reports which are still in existence, with any enclosures. POST 41 consists of indexed volumes containing a copy of every Report submitted to the Postmaster General (including those which have since been destroyed) and is the only guide to the contents of POST 39. The Postmaster General's decision on each case is recorded. Examples of incidents recorded in the reports include the capture of packet ships, possibly due to pirates, smuggling of dry goods, loss of crew, terms and conditions of ship hire, victualling of crew and route changes and times.

In 1811 a parallel series entitled Packet Minutes (POST 29 and POST 34) was created. Cases for the attention of the Postmaster General were sometimes recorded in both series, but at other times in only one of the two series. Upon the cessation of the Report series POST 29 and POST 34 continued alone.

For further details of how this class relates to the other report and minute classes, see the following section 'Related Material'.

The Packet Report series (POST 39 and POST 41) comprise reports to the Postmaster General, from the Secretary to the Post Office, on the Packet Boat service and overseas mail arrangements.

POST 41 consists of indexed volumes containing a copy of every report submitted to the Postmaster General (including those which have since been destroyed) and is the only guide to the contents of POST 39 (Packet Service Report Papers). The Postmaster General's decision on each case is also recorded. POST 39 consists of those actual reports which are still in existence, with any enclosures.

In 1811 a parallel series entitled Packet Minutes (POST 29 and POST 34) was created. Cases for the attention of the Postmaster General were sometimes recorded in both series, but at other times in only one of the two series. Upon the cessation of the Report series POST 29 and POST 34 continued alone.

For further details of how this class relates to the other report and minute classes, see the following section 'Related Material'.

This series comprises minutes, reports, correspondence and statistics relating to postage stamps. It relates to the design, selection of designs and production of postage stamps and stamp books, matters concerning responsibility for production costs, the use of stamps as remittance, the introduction of King George V postage stamps, and questions regarding postage stamps put to the Postmaster General through Parliament.

This Post Class contains statistics relating to Post Office business, including returns of delivered, posted and registered mails, 1839-1913; comparative summaries of annual returns of work and staff hours from Head Post Offices in the United Kingdom, covering 1923-1966; returns of work and staff on Travelling Post Offices and Sorting Carriages, 1951-1974; and postal business key performance statistics, 1973-1985. Also includes statistics relating to Quality of Service (1985-1989 and 1992).

This series relates to the postal draft system from its inception in 1912 until it ceased in 1969 with the introduction of Girobank services. It comprises correspondence between the Post Office and government departments, committee minutes, reports, and specimens of postal drafts.

Includes Board minutes and reports concerned with industrial relations with the Union of Postal Workers in general and the national postal workers' strike of January to March 1971 in particular.

Other papers include an account of a fact-finding visit to the United States of America undertaken with colleagues in March 1971, transcripts of interviews, some photographs and copies of speeches.

This series of records comprises the private office papers of Rowland Hill including, Rowland Hill's Post Office Journals, extracts from the volumes of Secretary's minutes to the Postmaster General and some original documentation relating to those minutes, volumes of Rowland Hill's minutes to the Postmaster General, correspondence and general material relating particularly to postal reform and including a copy of all volumes of 'History of Penny Postage' by Sir Rowland Hill, KCB (published by William Clowes & Sons).

Schedules of annual property and income tax assessments made upon the salaries, annuities, and pensions of employees in the General Post Office in England, Wales, Scotland and Ireland, with signed certificates of affirmation and verification by the GPO Assessors and Commissioners (senior officers in the GPO, notably from the offices of the Secretary and Receiver General).

Accounts are arranged mainly by department or section and cover: establishments in GPO headquarters in London, Edinburgh and, from 1854, Dublin, including the Postmaster General, Secretary, Accountant General, Receiver General, Solicitor, Surveyors, heads of departments such as the Inland, Money Order, Returned Letter and Circulation offices, and their inspectors, clerks, sorters, stampers and messengers; letter carriers and receivers in London, under the General Post (up to 1856), Twopenny Post (up to 1844) and London District Post (from 1844); superannuated officers; provincial establishments in England, Wales, Scotland and, from 1854, Ireland, including postmasters, sub-postmasters, clerks, letter receivers and messengers; Colonial agents and postmasters; mail guards; officers of the railway or travelling post; telegraph and engineering establishments (from 1871); and Savings Bank staff (from 1862).

Entries state the name of employee, office or position held, amount of income assessable, exempt amount of income, duty payable and rate, rebates allowed and total deducted.

From POST 7/2 onwards, volumes consist of standard, printed schedule and certificate forms. POST 7/1 contains various pasted-in summary lists and certificates, covering 1813-1818. It is divided into Domestic and West Indies taxes assessed by the Receiver General.

This series is a useful source for family historians, containing lists of staff employed in the GPO between 1843 and 1884 and in 1891, including their position and annual salary.

This series comprises publications, reports, minutes and correspondence on the establishment, operation and development of the Public Relations Department (PRD) and its predecessors and successors. It also contains records on the communication and marketing activity of the Post Office, as well as advertising, training, and educational material produced by the PRD and other Post Office departments.

Post Office publications. This series consists of publications produced by the Post Office with the purpose of disseminating news throughout the organisation, and publications intended for the general public. Publications cover annual reports and accounts, the provision of postal services throughout the country, and staff newsletters from across the organisation, lecture notes, philatelic publications, and publications regarding postal history.

When Stephen Tallents became GPO (General Post Office) Public Relations Manager in 1933, he decided to adopt the use of posters to carry information from the Post Office to the public. The bulk of POST 110 consists of over 6000 posters produced by the Post Office from the creation of its Public Relations Department in 1934 up to the present day.

Posters were initially produced for distribution to schools as an educational aid, or for display on mail vans, but soon the decision was taken to produce posters specifically designed to be displayed inside public offices; subject matter included public information and sales of philatelic items.

Posters for internal purposes were also produced by the Joint Production Council from the 1950s, these variously encouraged staff to be industrious, vigilant and to be thrifty.

Many well-known artists and designers have been commissioned by the Post Office (particularly in the 1930s-1950s) to produce posters. These artists include Peter Huveneers, Hans Schleger (Zero), Abram Games, Austin Cooper, Eric Fraser, Jan Lewitt, George Him, Tom Eckersley, Edward McKnight Kauffer, Harold Sandys Williamson, Frederic Henri Kay Henrion, Hans Arnold Rothholz, Ronald Searle and Barnett Freedman.

POST 110 also includes POPOS (Post Office Point of Sale) display instructions produced for branches, giving information on the display material they should obtain and display for particular periods. It also includes other publicity material such as leaflets and calendars.

There is an ongoing project to catalogue POST 110, with the main focus currently on the posters; there are 1,837 posters catalogued and available for viewing via our online catalogue, the majority of these records also include images of the posters.

The earliest material in this series consists of artwork commissioned by the Public Relations Department and its predecessors to be printed and distributed as posters and greetings telegram forms.

It includes designs for posters that were subsequently published under the publication references IRP and PRD and a number of adopted greetings telegram designs, it also contains many designs for both posters and greetings telegrams that were rejected.

The Public Relations Department approached many artists to produce designs for posters and greetings telegram forms and the series includes work from noted artists such as: Tom Eckersley, Frank Newbould, Edward McKnight Kauffer, John Nash, Jan Lewitt and George Him, Pat Keely, Barnett Freedman, Claudia Freedman, Rex Whistler, Margaret Calkin James, Edward Bawden and John Farleigh.

Later material includes artwork produced for a variety of purposes, such as publicity leaflets, press advertisements and designs for logos, vehicle livery, postal equipment and letter boxes.

Material consists of paintings and pencil and ink drawings, it also incorporates various techniques such as lithography and computer aided design. The series also contains a number of photographs and transparencies as well as annotated printed proofs for designs.

There are also a number of items relating to logo and logotype design and branding of the Post Office and its services, including artwork for the redesign of the GPO logo by MacDonald Gill in 1934.

Also included are a number of original illustrations produced by artist, Ben Maile in 1990 for inclusion in a Post Office commissioned book: 'First Post: From Penny Black to Present Day'.

Records relating to the operation of British Postal Agencies.

This Class relates mainly to the railways but includes some material concerning conveyance of mail by mail coaches and steam ships.

This series contains records relating to the transportation of mails by road (mail coaches in particular) but also includes material on the early use of railways. Some reference to steam packets is also contained in this series.

This series relates to the conveyance of mails by Underground pneumatic tube in London. It comprises reports and papers produced and used by the committee appointed in 1909 by the Postmaster General to consider the introduction of the underground transmission of mails within London and plans of the proposed route for the railway, showing rail levels and junctions. It also contains a copy of the Post Office (London) Railway act and the patent granted to Hosiah Latimer Clark for the invention of apparatus for conveying post by pneumatic tube, (POST 20/30). Papers relating to the construction, maintenance and expansion of the Post Office (London) Railway are also present including specifications, invitations to tender, conditions of contract, estimate of costs and technical plans relating to the construction of new stations, car depots, subways, additions and alterations to stations, including the fitting and maintenance of electrical equipment. This is also demonstrated through numerous plans held within the collection. As well as the Manager's annual reports, there are also numerous files of miscellaneous correspondence, memoranda and reports from the Post Office to various departments and organisations regarding the Post Office (London) Railway, historical accounts. There are also two photograph albums of railway equipment and work being carried out on it.

Some of the plans show properties purchased by the Post Office following the passage of the Post Office (London) Railway Act in 1913. There is a series of signed plans dated 26 October 1914 showing the depth and route of the Post Office (London) railway below ground with details of tunnels, shield chambers, and shafts. There is also a series of plans marking individual and corporate properties along the proposed route of the Post Office Railway.

This record series comprises memoranda, letters and reports on the establishment and operation of the Foreign and Colonial Parcel Post, and agreements between the Post Office of the United Kingdom, and foreign postal authorities and shipping companies. It also includes papers relating to 1970s and 1980s overseas parcel services.

This class comprises Post Office headquarters files which, as a time saving wartime measure, were recorded under a Decimal Filing system, instead of the previously used 'Minuted' system. Like the minuted series, the files cover a diverse range of subjects and registry staff continued to add files to the series after it had nominally been closed in 1949: consequently, records date up to 1967. Subjects covered in the papers include inland and overseas telecommunications during and after wartime, the issue of stamps, and Post Office administrative records, such as those covering the introduction of the Decimal Filing system.

The Decimal Filing system was a simple system based on numbers being allocated to particular subjects or headings, with decimal extensions of these numbers being allocated to subheadings: e.g. 10 = Postal Packets, 100 = Letters (Ordinary). No record volumes were created for the Decimal Filing series; papers were filed in batches according to the common serial number allocated for a particular subject.

This series comprises 'minuted' papers relating to all manner of Post Office matters.

'Minuted' papers were those papers which had been submitted to the Postmaster General for a decision, and then been retained in the Post Office registry. At first, the papers 'minuted' tended only to be the particular case submitted to the Postmaster General but, as time went on, registry staff followed a practice of continuing to add physically to an existing minuted case all other cases on that subject which came to hand. As a result, the minuted papers frequently consist of quite large bundles of files. On a common subject spanning many years. The date range of files is consequently often much earlier or much later than the date suggested by the 'Former Reference' used by the registry staff and, in many cases, the precise dates covered by the files have not yet been listed. The subject of individual files among the minuted papers can be wide-ranging, from the mundane administrative minutiae to policy decisions on developments of critical importance.

Some abbreviations used in file titles (not an exhaustive list):

BFPO: British Forces Post Office

DG: Director General

IHDS: International Household Delivery Service

IMP: Integrated Mail Processor

IMS: Institute of Manpower Studies

IOC: International Olympic Committee

IPBS: Infectious Perishable Biological Substances

IPC: International Post Corporation

IPT: Industry and Parliamentary Trust

ISIS (pay): Individual Salary Increase System

ISIS (postage stamps): Immediate Sales Indicator Systems

ISM: Information Systems Manager(s)

LPR: London Postal Region

NPM: National Postal Museum

PMG: Postmaster General

POB: Post Office Board

POC: Post Office Circular

POP: Post Office Preferred

POUNC: Post Office Users' National Council

P&TO: Postal and Telegraph Officers

PRU: Pay Research Unit

RFU: Rugby Football Union

TPO(S): Travelling Post Office(s)

UPW: Union of Post Office Workers