Stamps with this color combination:
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Description: brown & gray black
Abbrev: brn&grayblk
Used by 4 stamps: (See all uses as list) Colombia airmail 10/29/1955 20c issue=7th Postal Union Congress of the Americas and Spain d=Marti, Hidalgo and Petion unwmk perf=13 San Marino airmail 3/16/1942 25c issue=Arbe d=plane over Arbe wmk=three plumes Uruguay postage 11/25/1919 20c issue=1919 d=Montevideo harbor & Mt Cerro unwmk Uruguay official 2/25/1919 20c issue=1919 official unwmk |