59.35mm. 94.94g. Plain edge. Signed W. BARBER F. (William Barber), who was Chief Engraver at the U.S. Mint from 1869 to 1879 and father of his successor as Chief Engraver, Charles Barber. This is the larger of two sizes known. Both sizes exist in silver and bronze. The reverse inscription reads: J. WARNELL / FOR EXHIBIT OF / ELECTRIC ERADICATOR / 1882. Each side exhibits attractive golden-brown patina. There are a few minor ticks on the reverse and around the rim.

Ex: Stack’s Bowers (11/2020), lot 10138.