Stamps with this color combination:
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Description: gray blue & dark blue
Abbrev: graybl&dkbl
Used by 6 stamps: (See all uses as list)
France airmail 3/3/1969 1.00fr issue=First Flight of the Concorde d=Concorde unwmk
Israel postage 11/25/1959 250p issue=Eliezer Ben-Yehuda 100th d=Ben-Yehuda unwmk
Nepal postage 12/11/1971 1r issue=25th Anniversary of UNICEF unwmk
Poland postage 12/23/1954 1.55z issue=10th Anniversary of the Polish People's Republic d=Ship building freighter Soldek unwmk perf=9-14.5
South Africa postage due 1961 5c issue=1961 due c unwmk
South Africa postage due 2/14/1961 5c issue=1961 due unwmk
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