9 Franklin Mint NASA Sterling Silver medals. 641 oz of Sterling Silver.. Aprox 5.9 oz ASW. The item "9 Franklin Mint NASA Sterling Silver medals" is in sale since Friday, May 28, 2021. This item is in the category "Coins & Paper Money\Exonumia\Medals". The seller is "tpe" and is located in Malvern, Ohio. This item can be shipped to United States.