Major mint errors on 20¢ Pieces are unheard of. The only two errors on 20¢ pieces that come to mind are a broadstruck in VG condition and a 5% Off-Center in Fine condition.

This is a unique discovery. This 20¢ Piece was double struck and the obverse rotated between strikes. Upon close examination much of the detail of the original strike is present on the obverse.

To top it off, this 20¢ piece is a better date (1876 with a mintage of only 15,900). It is also in choice mint state condition with medium original toning.

This would be the highlight of any collection of major mint errors, silver type coins or 20¢ pieces. It is one of the most spectacular major mint errors that has recently surfaced.