Lot 810
U.S.; Postal Stationery, Airmail, 1951, 6¢ on 6¢ Carmine Error, #UC20a, mint, clean, immaculate and Very Fine. With accompanying letter dated 1955 from stamp dealer Cheney announcing the discovery.
UPSS #AM69 $1,750.
Scott $2,500. Very rare .
Estimate $600-800.
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| Realized $1,035 |
