They weigh 1.25 troy oz each, total weight 122.5 troy oz. They are sterling silver, which is 92.5% silver weight. Franklin Mint History of Flight Sterling Silver Medals. The item "Franklin Mint History of Flight Sterling Silver 98 Medals.Total 122.5 OZ" is in sale since Friday, June 7, 2019. This item is in the category "Collectibles\Decorative Collectibles\Decorative Collectible Brands\Franklin Mint\Other Franklin Mint". The seller is "yourfitnessgroup2012" and is located in Fort Worth, Texas. This item can be shipped to United States.