Major Mint Errors on Proof U.S. Patterns are very rare. This 1871 Proof Silver Dollar Pattern in the Standard Silver Series was double struck on the obverse with a 5 degree rotation between the two strikes.

This pattern is Judd #1133 with a Rarity Rating of R-6. The obverse is Longacre’s Indian Princess design. This pattern mint error is in choice proof condition with light original toning.