The regular dies trial piece. These were eiter deliberately struck for sale to collectors or are mint errors as described with each piece. Examples were struck in the following combinations: Copper J455/P529. These are presumably on thick planchets. They may actually be mint errors on bronze planchets that were of the wrong thickness. Only 2 or 3 are believed to exist. Copper-Nickel J456/P530. Those on 72 grain planchets are believed to have been struck on leftovers used for regular coinage from 1857-1864 and thus may be mint errors. Over a dozen exist in both proof and business strike format including the illustrated example. Nickel J457/P531. There is a strong possibility that these are also mint errors struck on stock intended for either regular nickel 3 cent or shield nickel coinage. One example was tested and found to be 80% Copper and 20% Nickel and weighing 47.84 grs which casts doubts on that theory, however. Only 2 or 3 are believed to exist. The Simpson-Heritage 1/21 FUN example is a business strike graded PCGS MS66. Photo courtesy of Bowers and Merena.