Stamps with this color combination:
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Description: gray black & blue green
Abbrev: grayblk&blgrn
Used by 2 stamps: (See all uses as list) Cayman Islands postage 3/2/1953 2 1/2d issue=1953 d=map of Caymans & Queen Elizabeth II wmk=mult crown & script CA perf=11.5x11 Nicaragua postage 11/5/1954 15c issue=National Air Force d=General A. Somoza, Founder of FAN unwmk |