Although these are described as regular die trial pieces in the standard references, it is more likely that these were deliberately struck for sale to collectors as part of complete off-metal sets. Examples were struck as follows. To see all available images, click here. Copper J1416/P1559 with at least 3 known including: 1) RARCOA-Auction 88, Simpson-Heritage 8/21 - PCGS65RED 2) B/M 9/75, Legend Auctions 5/17 - PCGS65RED 3) B/M 9/84, Heritage 8/85 ANA, Superior 1/86, Queller-Heritage 1/09 FUN - NGC65RB The Champa-AAA (Bowers & Ruddy) May 1972; Rothert-B/R 11/73 is possibly one of above or a 4th. Note: As 4 are known for all of the other denominations from the 3 cent to the trade dollar, a 4th is likely. Aluminum J1417/P1560 with only 2 believed known including: 1) Paramount 1966 Rare Coin List #3, B/R 9/75, unknown intermediates, Heritage 7/08 ANA, B/M 8/10 as NGC63, Heritage 1/12, Heritage 4/12, Heritage 1/18 FUN, StacksBowers 3/19 - PCGS63, illustrated below One of these is ex Malcolm Jackson-U.S. Coin 5/1913, Empire-Stacks 11/57, the other ex Woodin-Newcomer Photos courtesy of Heritage.