1952 AIR MAIL LONDON TO SOUTH AFRICA WITH KGVI 2/6 YELLOW-GREEN (SG509). Envelope 218 x 102 sent air mail London to East London, South Africa with 2/6 yellow-green (SG509), tone spot, also 3d pale violet (SG490), 6d purple (SG470) and 1s bistre-brown (SG475) tied light strikes 'REGISTERED/THROGMORTON AVENUE' date stamps 31 OCT 52. (Ref 104106).
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