The regular dies trial piece. Examples were struck as follows: Available images for all of these can be found here. Copper and/or bronze J510-1/P594. According to Kurt Brintzenhofe, these were struck from 2 different reverse dies, one of which has a prominent center dot. 3 examples are apparently known as follows: 1) Superior 1/90 - PCGS63BN from reverse die without center dot. 2) Simpson-Heritage 1/21 - PCGS64RB from reverse without center dot and illustrated above. Click on the thumbnail to enlarge. 3) Heritage 3/09 - PCGS64BN from completely different dies with both obverse and reverse having a center dot. Steel or pure nickel J512/P595. This unique coin is ex-Haseltine (Lot 562), Sept. 1876; Cogan ‘A.S. Jenks’ (Lot 209), Nov. 1877; Parmelee (part of Lot 165), 1890; Woodin, Brenner; ANS 1914; Brand, unknown intermediaries; Kagin’s ‘Mid Atlantic’ (Lot 1871), Nov. 1974; B & R Rare Coin Review No. 24 (1975), p. 58, No. 25 (1975), p. 69, No. 26 (1976), p. 75, No. 28 (1977), p. 66; No. 29 (1977), p. 75, and No. 30 (1978), p. 67; J.E. Drew-Bowers and Merena 3/96 (lot 2027), W. Wilcox, Leidman - NGC64. At least 2 examples in copper are mint errors struck on cent planchets and should not be confused with the copper die trials. For additional information on these, click here. Photo courtesy of PCGS.