Fine Coins & Stamps
Lot 1246:
1918, inverted black overprint on imperforated 1k orange, nice margins at three sides, neat postal cancellation, fine and the only known example of this rarity, illustrated in the Dr. Ceresa handbook, expertized by A. Popov, Dr. Seichter and J. Bulat, priced with ”-” in the Cat., Bulat #2473 var
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