Coronation Flight 1911, First UK Aerial Post by sanction of H.M. Postmaster General, First Flight London - Windsor - London, printed card (green-olive) franked with ½ Penny green and cancelled with special aerial postmark London 09-14 flown to Windsor and adressed to Manchester, advertisment imprinted on front in red "... 5.000 communications from THE MOLASSINE COMPANY LTD" and on reverse further information and more advertising
6; Flugpost; FLUGPOST INTERNATIONAL; Großbritannien