Stamps with this color combination:
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Description: black olive & black
Abbrev: blkol&blk
Used by 2 stamps: (See all uses as list) Nicaragua airmail 2/7/1966 35c issue=Winston Churchill memorial unwmk Spain postage 2/25/1965 2.50p dt=personages d=Gaspar Jovellanos unwmk perf=14 |