Click to expand Tap to zoom 1999-S US Mint Silver Proof Set Gem Coins In OGP W/Box and COA $108.08 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 1999-S U.S. Mint Silver Proof Set. Nine Gem Coins In OGP W/Box and COA. Contains the 1st year of issue Statehood Quarters.