United States Postal stationery 1886, 1c Black on Buff, Double...

United States Postal stationery 1886, 1c Black on Buff, Double Impression, One Inverted. Mint card, bright and fresh, sealed edge tear and creasing, Fine appearance, ex-Floyd. Scott No. UX9c; $11,000. ONE OF ONLY TWO RECORDED MINT EXAMPLES OF THIS MAJOR POSTAL CARD RARITY.

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