This lot includes (5) 1 oz Pyromet Silver Cards with a Certificate of Authenticity. The bars are made of 0.999 fine silver and each card contains 1 troy ounce of precious metal. The bars are shaped like cards and were manufactured in the United States by Pyromet. The total precious metal content of the lot is 5 troy ounces. This lot is a great addition to any collection for those interested in bullion. Each card comes with a protective sleeve.