Great Britain – The Stamp Set features all six pictorial Post & Go stamps, overprinted with First Class values and presented on a richly illustrated information card. The reverse offers a fascinating commentary by Julian Stray of The Postal Museum.

Travelling Post Office: bag exchange – This specially designed apparatus was first successfully used in 1838.

Post Office (London) Railway –  Also known as the Post Office Underground.

Night Mail poster – This striking poster appeared in 1939, three years after the iconic Night Mail film.

Travelling Post Office: loading –  This 1948 poster depicts the hive of mail activity at London Euston station.

Travelling Post Office: sorting – A Travelling Post Office (TPO) could have up to 50 skilled postal staff sorting mail.

Travelling Post Office: on the move – Bespoke TPOs ran from 1838 to 2004. In the 1930s there were 130 of them.

Issue Date: 15.02.2017