Lot 10729 – UNIQUE HENDON TO WINDSOR FLIGHT COVER 1911 Firs

UNIQUE HENDON TO WINDSOR FLIGHT COVER 1911 First U.K. Aerial Post, special card imprinted for flight from HENDON to WINDSOR, with KGV 1/2d tied by Die 5 Aerial Post cancel of Sept. 11, and addressed to London, very minor creasing else fine. The only flown Hendon-Windsor card known to us, thus an important early airmail showpiece