Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 3

Soviet Union

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Start price: $100

Buyer's premium:

1951-56, Scientists – N. Kurnakov, N. Miklouho-Maclay (2) and P. Yablochkov, solo franking on covers to Germany, Canada (2) and Crimea, first one with slight fold away from the stamp, all are F/VF, Est. $200-$250, Scott #1573/83