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 off-metal sets. These were struck as follows: To see all available images, click here. Copper J1203/P1343 with only 3 or 4 believed to exist including: 1) Lohr, Cox-Stacks 4/62, donated by Cox to the Smithsonian in 1963 2) Heritage 3/12, StacksBowers 8/14 ANA – PCGS66RB, illustrated above courtesy of StacksBowers, click on the thumbnail image to enlarge 3) Heritage 6/21, Heritage 11/20 – PCGS64BN Aluminum J1204/P1344 with only 2 confirmed as follows: 1) NERCA 5/77?, NASCA 11/77, Ivy 7/78 – proof 60 + 2) NERCA 11/80?, Heritage 11/89 as PCGS65, Heritage 7/97 ANA as PCGS65, Superior 6/98 as PCGS65, a few Teletrade sales in 1999-2000, Simpson-Heritage 2/21 – PCGS66, illustrated below