NNP Encyclopedia data is provided in cooperation with Whitman Brands, based on catalog data organized by the Greysheet Identification System (GSID).
Entry Details
PCGS Number: 11835 Coin Date: (1857) Denomination (Short): P$20 Denomination (Long): Pattern $20 Variety: Copper, Uniface Die Trial Variety 2: J-190 Desg: PR Composition: Copper Mintage: Unique Strike Type: Proof Coinage Type: Pattern Coinage Years: 1857 Mint Location: Philadelphia Edge: Plain Obverse Description: Blank. Reverse Description: From the regular die of the period. General Notes: Undated $20. Experimental piece. The regular reverse, uniface, was made very concave by passing it through the upsetting machine before and after striking. PCGS #: 11835 NGC ID: 29BA
