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

Imperial Russia - Proofs from the Tsar Collection

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Start price: $600

Buyer's premium:

1913, Tercentenary of the Romanov Dynasty, Alexander III, imperforated large die proof of 3k in orange, printed on chalk-surfaced thick paper, size 38x49mm, previously hinged, no typical thins, VF and rare, Est. $1,000-$1,200 , Sc. #90