1951 AIRMAIL LONDON TO CALCUTTA, INDIA KGVI 5s RED (SG510) x THREE AND 1s BISTRE-BROWN (SG475) BLOCK OF FOUR. Envelope, 266 x 153 airmail London to Calcutta, India with KGVI 5s red (SG510) x three and block of four 1s bistre-brown (SG475) with 'LONDON' date stamps 23 NO 1951. Some creasing, several stamps affected, on reverse 'CALCUTTA' date stamp 26 NOV 51. Unusual franking. (Ref 145475).
%20x%20THREE%20AND%201s%20BISTRE-BROWN%20(SG475)%20BLOCK%20OF%20FOUR.){kind=link}