Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3

Soviet Union Stamps of 1941-91

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Start price: $400

Buyer's premium:

1987, Calm on Nuclear Proving Grounds, 5k multicolored, three water-color sketches drawn on one piece by artist G. Komlev, all in one size 55x80mm, fresh quality, VF and unique, a stamp of that topic has never been issued, Est. $700-$800