Although described as regular dies trial pieces, these were deliberately struck for sale to collectors as part of complete off-metal sets.
Examples were struck as follows:
Copper J1476/P1629 with only 2 believed to exist including the Farouk, Vickery, 72 ANA example in a Wyoming collection and the other being the illustrated piece ex Stirling-Heritage 5/09, Simpson collection - PCGS65RED.
Aluminum J1477. This was delisted by Pollock. It is not believed to exist.
Photo courtesy of Heritage.