Stamps with this color combination:
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Description: orange & indigo & black
Abbrev: org&ind&blk
Used by 2 stamps: (See all uses as list) Bulgaria postage 1901 3s issue=1901 d=Tsar Ferdinand (1901) unwmk perf=12.5 Bulgaria postage 10/1910 1s d=Tsar Ferdinand (1901) ovpt=1910//value oc=blk on=issue=1901-3s unwmk perf=12.5 |