Click to enlargeJ1350/P1494

Although called regular dies trial pieces, these were more likely deliberately struck for sale to collectors as part of complete off-metal sets.

Examples were struck as follows:

Copper J1350/P1494 with only 2 or 3 pieces known.

Aluminum J1351/P1495 also with only 2 or 3 pieces known.

Photo courtesy of Stacks.