Silver $100 Ingot Silver $100 Ingot Posted on March 27, 2018 by john 27 Mar $100 Silver Proof. A Quarter-Pound Silver Proof struck by the Washington Mint with Certificate of Authenticity. Specification:- .999 Pure Silver. Weight One Quarter-Pound (4 Troy Ounces). Proof struck from the New U.S. Franklin $100 Bill. Price includes UK Postage and Packing john Bruce Lee National Serviceman’s Handbook