1911 FIRST OFFICIAL U.K. AERIAL POST/LONDON POST CARD IN OLIVE-GREEN TO SAN FRANCISCO. Good London post card in olive-green (minor imperfections, mainly on reverse) addressed to San Francisco, U.S.A. with attractive combination of King Edward VII ½d yellow-green and KGV ½d Downey cancelled good to fine strikes FIRST UNITED KINGDOM/AERIAL POST LONDON date stamps SP 9 11 die 1. Nice overseas usage. (Ref 104393).
