2007 20pc Silver American Eagle NGC MS69

Silver has historically been the most affordable precious metal. Since 1986, the United States has minted one-dollar silver coins called "Silver Eagles." Each contains a minimum of one troy ounce of 99.9% pure silver. They're the qualities that have made American Eagle Silver Bullion Coins the world's best-selling silver coins, with more than 130 million sold since 1986. This quality (GRADE) rating is determined on the Sheldon scale, on which points are deducted from 70 for each flaw or imperfection on a coin's surface. A 70 is thus the highest grade a coin can achieve, with no flaws visible to the unaided eye.