Item no. P1535b (postcard)
Type: cover
Country: Great Britain
Date of use: 6 July 1973
Special card (back of) issued to commemorate The Second AIRMAIL EHXIBITION held 4 – 7 July 1973 in Manchester (Great Britain). The card contained a chip of microfilm that was carried by carrier pigeon released on 18 June 1973 (at 16.08 hrs) for direct flight from Kodak House in Hemel Hempstead (Hertfordshire, Great Britain), to Windsor (Berkshire, G.B.), to mark the 50th anniversary of the Aero Philatelic Club of London.