Lot 1274
U.S.; Postal Stationery, 1907, 5¢ Blue on Blue, Die 2, Color Error, Cut Square, #U418c, instead of white, 49x48mm full corner mint, rich color on strongly blued paper, fresh and extremely fine; only known as a cut square and very rare. Ex Flattery.
Scott $3,250. , very rare, realized $3200+ in 2010 auction .
Estimate $1,500-2,000.
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| Realized $1,668 |
