Minted from 1999 through 2008, the 50 State quarters were a series of commemorative quarters released by the United States Mint. They feature unique designs for each of the 50 US states on the reverse. Each state was only minted and available in one year. These state quarters are not silver, all quarters minted after 1965 are made from copper and nickel. The inside of these rings will have a protective coat of jewelry grade renaissance wax to help prvent discoloration of your skin. Every inidivuals reacts differently to certain metals, please keep this in mind when wearing these rings. Please indicate which state quarter you would like when you order.