The U.S. Mint released a series of quarters featuring each of the 50 states in the union between 1999 and 2008. Uncirculated examples can be valued at a premium over quarters that been used in circulation.
Identification
Each quarter features George Washington on the front along with the words "United States of America" and "Quarter Dollar". The reverse has a different design for each state.
Composition
The quarters are 75 percent copper and 25 percent nickel on the outer layer and 100 percent pure copper in the inner core.
Size
The quarters are 24 mm in diameter and weigh 5.67 grams.
Conditions
A coin that is choice uncirculated (MS-63) has no wear and only light blemishes. One that is considered to be gem uncirculated (MS-63) has practically no flaws.
Values
State quarters in MS-63 condition tend to be valued between 75 cents and $1.25 while those in MS-65 shape can be worth $1 to $2 as of 2009.