1878 Twenty-Cent Piece. Proof-58 (PCGS).;Sharply defined with little in the way of actual wear, light hairlining to both sides seems to explain the Proof-58 grade assigned by PCGS. Rose-russet peripheral toning along the right obverse and reverse interrupt otherwise silvery brilliance for both sides. A more affordable level of preservation for this Proof-only issue in the brief twenty-cent series.