Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2

Imperial Russia

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Start price: $100

Buyer's premium:

1905, 7r black and yellow, three-side margin block of ten (5×2 bottom part of a sheet), vertically laid paper with watermark letters “E.Z.G.B.” reading down (normal), occasional marginal separation, nice and fresh, full OG, NH, VF, C.v. $400++, Scott #7