Although these are described as regular die trial pieces in the standard references, it is more likely they were deliberately struck for sale to collectors as part of complete off-metal sets. Examples were struck as follows: To see available images, click here. Copper J1348/P1492 with only the Brenner-1914 ANS, Brand and Woodin, Newcomer coins believed to exist. One of these is ex Lohr, Polis-B/M 6/91, Simpson-Heritage 4/21 - Bourne - PCGS66RED, illustrated above, click on the thumbnail to enlarge Aluminum J1349/P1493 with only 2 confirmed: 1) Simpson-Heritage 2/21, Bourne - PCGS65 2) B/R RCR #21-29 (1974-77) in set, Southern collection, Simpson, Stacks 11/07, Heritage 1/12 FUN, Heritage 4/12, Heritage 9/12, Heritage 11/12 - PCGS62 One of these is ex Brenner-1914 ANS, Brand and the other ex Woodin, Newcomer. The Lohr collection had examples of both. Note: Spark erosion counterfeits in both copper and aluminum are known.