Six pictorial Post & Go: Royal Mail Heritage: Mail by Air stamps, overprinted with 1st Class values.
Presented on an illustrated information card that features a detail of the 'Military mail flight, 1919' stamp at larger size.
First UK aerial mail, 1911: A Blériot monoplane carries mail to King George V at Windsor Castle.
Military mail flight, 1919: Mail was flown to troops in Germany on a De Havilland DH.10.
International airmail, 1933: A Handley Page HP.42E airliner flying mail over the Egyptian pyramids.
Domestic airmail, 1934: The De Havilland DH.84 Dragon II was used by most airlines for carrying mail.
Flying boat airmail, 1937: Flying boats carried 1st Class mail for 1_d within the British Empire.
Datapost service, 1980s: An Embraer Bandeirante EMB.110P1 could guarantee next-day UK delivery.