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: $1,500

Buyer's premium:

1982, Italian Paintings in the Hermitage, proof souvenir sheet of two 50k multicolored stamps and label with Hermitage embossing in the middle, affixed over Goznak special thin card with the similar central embossing, no serial number under label, VF and extremely rare, according to our records this is the second proof sheet offered on the public sale, I. Kirzhner and V. Liapine clear certificates, Est. $2,500-$3,000, Sc. #5103a