142564 1942 2/6 YELLOW-GREEN (SG476b) GOOD USED BLOCK OF FOUR TWO WITH 'UNICORN RE-ENTRIES'.

1942 2/6 YELLOW-GREEN (SG476b) GOOD USED BLOCK OF FOUR TWO WITH 'UNICORN RE-ENTRIES'. Good used block of four 1942 2/6 yellow-green (SG476b), some imperfections on reverse and two stamps slightly separated, but stamps at left being positions 1/5 and 2/5 and both showing 'MAJOR UNICORN RE-ENTRIES'. Block cancelled single strike 'FIELD POST OFFICE/75' date stamp 17 DE 43?. Good multiple. (Ref 142564).