Stamps with this color combination:
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Description: green gray & dark brown
Abbrev: grngray&dkbrn
Used by 2 stamps: (See all uses as list) Libya airmail 1/1/1966 15m issue=UNESCO Campaign for Nubian Monuments Preservation unwmk Panama postage 9/1/1964 0.10b dt=Aquatic Sports d=Airmail unwmk |