No further information available

The first ever main line railway opened in 1825 and ran between Stockton and Darlington. In 1827 the use of that railway, and future lines, for carriage of mails was suggested to Secretary Francis Freeling by Thomas Richardson (see POST 11/51). The first conveyance of mail by this method actually occurred on 11 November 1830 on the Liverpool and Manchester Railway, less than two months after this second main line had opened (see POST 11/52). The Post Office was quick to take advantage of the new form of transport and in July 1837 mails were conveyed by train from Birmingham to Liverpool on the inaugural service of the Grand Junction Railway (see POST 11/57 and 58). In January 1838 the idea of having special mail carriages was experimented with; a horse box suitably fitted up started running between Birmingham and Liverpool on the Grand Junction in 1838. Proving a success, the first official 'travelling post office' set off from London to Preston on 1 October 1838.

In August 1838 an Act to provide for the conveyance of the mails by railways was passed by Parliament. This enabled the Postmaster General to compel railway companies to carry mails by ordinary or special trains, at such hours as the Postmaster General might direct, together with mail guards and other officers of the Post Office. Companies could also be required to provide carriages fitted up for sorting letters en route. In return, railway companies would receive a payment to be fixed, by arbitration if necessary, for any services and accommodation supplied. This Act provided the foundation for all future arrangements for carrying mails by rail.

Between 1838 and 1848 railways expanded rapidly in Britain and mails were quickly diverted to them from the roads. The London and Birmingham Railway, opened in September 1838, was the first important line to be completed in England and marked the end of the 'Golden Age' of coaching. From 1844, the year of 'railway mania', to 1848, 637 separate lines received their charters from Parliament. Mail coach contractors unable to get passengers essential to their operations where the railway ran a parallel route began giving notice to quit (see POST 11/60 and 61). The south western coaches ceased their runs when the Great Western Railway was completed to Bristol in June 1841. The last horse drawn mail from London, to Norwich via Newmarket, was withdrawn in January 1846. By this time the railway network was becoming moderately complete. However, up to the 1870s railway services in the provinces often operated in connection with mail coaches.

By the 1850s the railway posts were generally known as Travelling Post Offices or Sorting Carriages and a number of trains almost wholly devoted to carrying mail were in operation. (See also POST 18). Over the next seventy years railways contributed significantly to the vast improvement in quality, increase of volume and speed of postal communications within Britain. Serious competition was absent until the widespread use of motor vehicles from the second quarter of the twentieth century.