Heritage World Coin Auctions
FUN Signature US Coin Sale 1251 4-6 & 8-9 Jan 2017
View prices realized
► Sale information
Find similar lots
Errors
Undated $1 Silver Eagle -- Struck on a 3M Sanding Disc -- MS63 PCGS. The legends of this piece state it is "1 OZ. FINE SILVER," but this coin contains no silver at all, since it was struck on a wafer-thin sanding disc. A sanding (or emery) disc is thin, round, granular, and backed by an adhesive. Often, it is affixed to a buffing wheel, and was presumably used at the Mint to help prepare dies. Somehow, a sanding disc covered a silver eagle planchet at the moment of strike. The silver planchet (not included) blocked the obverse die, thus the front of this dark gray piece has a reverse die impression. The other side shows an incused impression of the reverse.
Undated $1 Silver Eagle -- Struck on a 3M Sanding Disc -- MS63 PCGS. The legends of this piece state it is "1 OZ. FINE SILVER," but this coin contains no silver at all, since it was struck on a wafer-thin sanding disc. A sanding (or emery) disc is thin, round, granular, and backed by an adhesive. Often, it is affixed to a buffing wheel, and was presumably used at the Mint to help prepare dies. Somehow, a sanding disc covered a silver eagle planchet at the moment of strike. The silver planchet (not included) blocked the obverse die, thus the front of this dark gray piece has a reverse die impression. The other side shows an incused impression of the reverse.