This 2013 United States Mint Limited Edition Silver Proof Set is a must-have for avid collectors. The set includes 8 ins, all in uncirculated condition. The coins are of mixed denomination and the Walking Liberty dollar is made of 0.999 fineness silver – the other 7 coins are 90% silver with the balance, copper. Each coin is a proof strike, produced in the West Point Mint location and certified by the U. With a KM number of 273, this set is a rare find. Add this to your collection today and enjoy the beauty and craftsmanship of these stunning coins.