Letter from William Henry Rowlestone Jessop of Grove House, St David's, Haverfordwest, [Pembrokeshire] to an unidentified correspondent, 17 Oct 1855. Accompanying a copy of his work on the decimal system: '... it is the first book which embraces the whole System of Money and Measures that has yet appeared ... You will perceive that this system is very superior to that in France [i.e. to the metric system]'.
Autograph, with signature.
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