1870 Proof Half Dollar Pattern - J-993

Coin Details

Auction Record

$9,200 PR64 01-05-2011 Heritage Auctions

Description

A copper die trial with a reeded edge, J-993 was struck to evaluate the condition and performance of the half dollar pattern dies rather than to propose a specific design for adoption. Die trials served a purely technical purpose at the Mint: they allowed engravers to inspect the depth and clarity of the die's devices, check for cracks or defects, and assess whether the dies remained serviceable after extended use. Copper was the preferred metal for such tests because it was inexpensive and its softness revealed die detail with exceptional fidelity.

Rarity Notes

R-7. Extremely rare, estimated 4-12 examples known.

Cross References

Judd-993, Pollock-1123