1911 FIRST OFFICIAL U.K. AERIAL POST/LONDON POST CARD IN RED-BROWN TO GERMANY. Good London post card in red-brown to Frankfurt, Germany with KGV Downey head ½d and 1d cancelled fine large part strike FIRST UNITED KINGDOM/AERIAL POST LONDON date stamp SP 9 1911 with the scarcer die 5. Corner crease but good overseas usage. (Ref 104374).
