The product described is a 1922 Stone Mountain Commemorative 50C Silver Half Dollar that is uncirculated and in mint condition. Weighing 12.5 Grams…. This coin was struck in business settings in Philadelphia with a fineness of 0.9 silver. It features a commemorative design and is part of the United States coin collection. A truly desireable addition for collectors interested in silver commemorative coins from the early 20th century.