1976 Proof Dollar - Rev Uniface DT

Coin Details

Description

A uniface reverse die trial of the Bicentennial Eisenhower dollar, struck with only the reverse die against a blank planchet, leaving the obverse side completely blank and unstruck. Uniface die trials serve a specific technical purpose at the Mint: they allow engravers and press operators to evaluate a single die's performance in isolation, without the complicating interaction of the opposing die. By examining only the reverse impression, technicians could assess the depth and sharpness of Dennis Williams's Liberty Bell and Moon design, check for any die defects or weaknesses, and verify that the relief was appropriate for production striking pressures. The blank obverse surface of a uniface trial is typically flat or slightly concave, showing only the texture of the planchet itself. These pieces are struck in proof format, meaning polished dies and controlled striking conditions, to provide the clearest possible evaluation of die quality. Uniface die trials are among the most technically interesting artifacts of the coinage production process, offering direct insight into the quality-control procedures that precede every production run.

Rarity Notes

R-8 (Extremely Rare). Uniface die trials from the Bicentennial program are very rare, as they were produced solely for internal quality control.

Cross References

Related to the Bicentennial Eisenhower Dollar program (1776-1976).