Lot 688, Great Britain 1911 first aerial post registered postcard to Calcutta, first official air mail flight, sold for C$3,744

Lot 688, Front of Great Britain 1911 first aerial post registered postcard to Calcutta, first official air mail flightLot 688, Back of Great Britain 1911 first aerial post registered postcard to Calcutta, first official air mail flightLot 688 Great Britain 1911 (February 18), First Aerial Post registered postcard to Calcutta, 1a stationery uprated with 4a adhesive, tied by neatly-struck rose “First Aerial Post / U.P. Exhibition Allahabad” cachet, registration etiquette alongside, Allahabad despatch and Wellesley Street Calcutta c.d.s. (2½2 Feb) c.d.s. on front, some light edge wear and trivial marks at lower left, a fine and rare registered card, and a desirable example from the world’s first official air mail flight. Estimate C$1,500, sold for C$3,200 plus 17% buyer’s premium.