TRAVELLING POST OFFICES
Mail by Rail
Mail was first carried by rail between Liverpool and Manchester in 1830, thus effecting a considerable saving of time. By 1838 it was realised that still more time could be saved if the mail were to be sorted en route. Thus it was that an experiment was carried out between Liverpool and Birmingham in January of that year. This was the birth of the travelling post office.

Some of the earliest marks were actually used by the Travelling Post Offices were mis-sent marks.

TPO vehicles had a letter box to receive mail posted at Railway Stations. Items of mail thus posted received the cancellation peculiar to that TPO.


Other countries quickly followed Great Britain by introducing Travelling Post Offices. Here is a cover postmarked 30 April, 1877 on the Italian TPO between Ventimiglia and Genoa. In this case the TPO. postmark is a sorting mark, the stamp having been cancelled by a rectangular grille at the place of origin.
The Decline and Fall of the Travelling Post Office

At one time every major country of the world had a comprehensive network of TPO routes. Today there are very few left and, of those which survive, their days are probably numbered. Here is a special cover to mark the last run of the BRISTOL – DERBY TPO on 30 September 1988.