Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1
Lot 87:
Description
1928 (August 1-2), First Flight registered cover from Moscow to Novosibirsk, delivered with Dobroliot Company by aircraft Fokker C.IV bis M-5 on line Moscow – Kazan – Sverdlovsk – Kurgan – Omsk – Novosibirsk, franked by three values, including the Hague Postal Conference complete set of two, Novosibirsk ”2.8.28” receiver on reverse, vertical fold, still F/VF and scarce, Est. $300-$350, Scott #C10-11
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