1911 FIRST OFFICIAL U.K. AERIAL POST/USED LONDON POST CARD IN BROWN. A fine example of the London post card in brown with KGV ½d Downey cancelled very fine strike FIRST UNITED KINGDOM/AERIAL POST LONDON date stamp SP 13 1911 die 1. On front and reverse hand stamp in purple of the stamp dealer "W. T. WILSON, 18 LIVINGSTONE ROAD, HANDSWORTH, BIRMINGHAM". Fine usage. (Ref 104469).