Stamps with this color combination:
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Description: gray green & red orange
Abbrev: graygrn&redorg
Used by 2 stamps: (See all uses as list) Colombia airmail 1/15/1954 10p issue=1954 air unwmk perf=13 Colombia airmail 12/1/1959 10p issue=1959 unification unwmk perf=13 |