Although these are described as regular die trial pieces in the standard references, the off-metal 'trials' of this year were deliberately struck for sale to collectors. They were struck in the following combinations: To see all available images, click here. Copper J1151/P1293 with only the following 2 coins confirmed: 1) Anderson-Dupont-Stacks 11/54 ?, Stacks 10/58 ?, Jarapendo-StacksBowers 6/11 - PCGS66RB 2) NERCA 7/79 ANA, State Rare Coins 1/81, Goldberg 2/03, Superior 9/08 - PCGS65RB as part of a complete silver set in all appearances. Aluminum J1152/P1294 with only one or 2 known as follows: 1) Magnolia-Spink/Smythe 5/11, Simpson-Heritage 1/24 FUN - PCGS67 2) Bowers & Ruddy's Rare Coin Reviews #13 1971 - #17 1973 as the plate in #17 doesn't appear to match. Nickel J1153/P1295 which is believed to be unique and, if so, ex Woodin-1914 ANS exhibit, Newcomer, Farouk, Kreisberg-Schulman 2/60, Superior 10/89, Superior 5/90, Superior 10/90, Share-ANR 9/03, southern collection, Simpson-Heritage 1/24 FUN - PCGS65 Photo courtesy of Stacks-Bowers.