Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3

Russian Air Post Stamps - Air Post Official stamps

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Start price: $600

Buyer's premium:

1922, red surcharge 1200m on Consular stamp of 2.25r dark blue on green and buff network, position 6 of 25- stamp setting, full OG, NH, VF, A. Diena and Soviet Philatelic guarantees, C.v. $2,200, Est. $800-$1,200 , Sc. #CO7