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: $1,000

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1913, Tercentenary of the Romanov Dynasty, Nicholas II, stage proof of 5r in dark blue, engraved printing on thin card, size 55x66mm, incomplete design of the frame (no engraving on the leaves of the ornament) and just slight primary impression of the central portrait, no any defects, bright and fresh, VF and extremely rare, Est. $1,500-$2,000, Sc. #104