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: $1,200

Buyer's premium:

1972, Leonid Sobinov, Russian Opera Singer, 10k deep brown and buff, re-called stamp with error bottom inscription ”National Artist of the USSR”, excellent centering and extremely fresh, full OG, NH, VF and rare, a common stamp with text ”National Artist of the Republic” is enclosed, Est. $2,000-$2,400, Sc. #3966 var