Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 1

Worldwide Air Post Stamps and Postal History - Germany

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Start price: $200

Buyer's premium:

1912, Air Post Semi-Official stamp, Margareten Volksfest Leipzig-Lindenthal, 50pf gray ultramarine, block of four, folded along horizontal perforation, fill OG, NH, VF and scarce multiple, Mi #4b, C.v. €1,200++, Est. $300-$400