
Corn Exchange Bank. $5.00. A. New York, NY. 1850's. India paper Proof on card by Danforth, Bald & Co. New York & Philada. Seated Liberty on clouds with eagle. At the left is the Bank die and at the right a grillwork pattern of five bars, above 'Caveat Entered at the Patent Office'. Haxby NY-1505 G8 SENC. The five bar pattern was used for anti-raising and a patent was applied for perhaps. However, the engraved warning was probably just a threat against competitors not to use this type of scheme on their notes. Cyrus Durand came up with the multiple uses of these patterns using machines he patented for nearly four decades. A Gem. Stamped on the card's verso by the ABN.
Ex Archives of the American Banknote Company (Christie's, September 14-15, 1990, part of lot 1218).
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