1952 AIR MAIL LONDON TO AUSTRALIA 2/6D YELLOW-GREEN (SG509). Large envelope (230 x 102) sent air mail London to Sydney, Australia with KGVI 3d pale violet (SG490) x 2, one with corner fault, and fine 2/6d yellow-green (SG509) cancelled LONDON 26 NOV 1952. (Ref 97406).
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