Although these are described as regular die trial pieces in the standard references, it is more likely that the off-metal 'trials' of this year were deliberately struck for sale to collectors as part of complete denominational sets. Examples were struck as follows: To see all available images, click here. Copper J873/P970 with at least the following 4 known: 1) Superior 10/73, G.H. Wolfe-Heritage 1/00 FUN, Denali – PCSG64RB, illustrated above, click on the thumbnail image to enlarge 2) B/M 3/93, Simpson-Heritage 8/21 ANA, Heritage 12/21 – PCGS65BN with a spot under the 1 in date and another under the NE in ONE 3) Heritage 11/03 as PCGS64BN, Stacks 1/05 as PCGS64BN, ANR 3/06, Heritage 4/13 as NGC66BN, Heritage 5/22, Heritage 5/23 – PCGS66BN with a spot near C in AMERICA 4) B/M 10/05 cleaned, hairlined, verdigris, Heritage 3/06 now rehabbed, Heritage 9/06 – PCGS62BN Aluminum J874/P971 with only the following 2 known: 1) Kagins 11/71 ?, Heritage 8/95 ANA, Simpson-Heritage 2/21 – PCGS64 with spots/corrosion on the first 2 in STATES and the E in AMERICA 2) B/R 1974-6 Rare Coin Reviews #21-6 in set, Superior 1/85, Superior 2/87 – proof 64 Nickel J875/P972 which is believed to be unique and ex Woodin-1914 ANS exhibit, Newcomer, Dunham-Mehl 6/41, Farouk Photo courtesy of Heritage.