Although described as a regular dies trial piece, these were actually 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 J1414/P1557 with over a dozen known. Aluminum J1415/P1558 with at least the following 2 confirmed to exist: 1) B/R 9/75, NERCA 12/76, Heritage 1/18 FUN - PCGS64 2) Kosoff 2/70 in set, Crouch-Superior 6/77, Heritage 4/12, Simpson-Heritage 8/21 - PCGS64 Photo courtesy of Heritage.