Auction 321 - 332 Europe & Overseas Great Britain & British Commonwealth - Day 3

1911: FIRST UK AERIAL POST, postcard with ½ d George V (2), tied by special cds "FIRST UNITED KINGDOM AERIAL POST / LONDON SEP 15 1911" addressed to 'Caire', clear travelling post office cds "ALEXANDRIA CAIRO FOREIGN MAIL T.P.O. 2nb-X. 11.T. 14.", extremely rare destination, believed to be the only known piece so far with this destination, excellent condition.