1911 FIRST OFFICIAL U.K. AERIAL POST/LONDON POST CARD IN OLIVE-GREEN TO SOUTH AFRICA. Fine London post card in olive-green addressed to Johannesburg, S. Africa with attractive combination of KGV ½d and 1d Downey cancelled very fine large part single strike FIRST UNITED KINGDOM/AERIAL POST LONDON date stamp SP 15 1911 with the scarcer die 5. Note on reverse "This card is to add to your collection, I expect in a few years it will not be a curiosity". (Ref 104426).
