NEWFOUNDLAND, First Transatlantic Air Mail Attempt, Flight effected on May 18, 1919 by Harry Hawker and Maj. MacKenzie Grieve in a Sopwith plane from St. Johns to Ireland. After flying about 1100 miles they were forced down in the sea near a Danish tramp steamer "Mary" whose crew rescued them. Cover with 3 Ct. "Caribou" stamp overprinted "FIRST TRANS ATLANTIC AIR POST April, 1919" cancelled St. Johns April 12, backstamped London May 30, 1919 on official UK post label "found open (or torn) and officially secured"; a great rarity of pioneer airmail, cover with minor faults, stamp in superb condition, Bolaffi certificate, additionally signed Diena (SG 142)
6; Flugpost; FLUGPOST INTERNATIONAL; Canada