1866 Proof Nickel Pattern - J-530

Coin Details

Description

One of the last three standard Judd numbers in the 1866 Shield Nickel composition series, J-530 tests a penultimate alloy formulation before the program's conclusion. These terminal entries represent the culmination of the most systematic alloy evaluation program in American Mint history to that date. Each surviving example preserves not only a numismatic artifact but a metallurgical specimen whose composition reflects the scientific understanding and industrial capabilities of the Reconstruction era. The proof striking format ensures that this specimen displays the Shield design with maximum detail and aesthetic appeal despite whatever unusual alloy may compose its planchet.

Rarity Notes

R.7 to R.8. Approximately 3-8 examples estimated.

Cross References

Pollock-3598