Please take a closer look. If your quarter has a picture of George Washington on one side, 1788 near the top of the other side, and it looks new, that's because it IS new. You
… have a State Quarter with two dates on it. 1788 is the date that the state was admitted to the Union, NOT the date the coin was minted! The minting date is at the bottom of the design on the back side. EVERY SINGLE ONE of the billions of state quarters in circulation has 2 dates on it. If you found your coin in change, it's worth exactly 25 cents - no more, no less. If it's uncirculated or proof and in its original mint packaging, it might be worth anywhere from 75¢ to a couple of dollars depending on the variety. These are the quarters issued to honor states admitted to the Union in 1788, and the dates they were actually minted: .
1999 : Georgia and Connecticut .
2000 : Massachusetts, Maryland, South Carolina, New Hampshire, Virginia .
2001 : New York "Silver" quarters Quarters minted for circulation since 1965 are made of copper-nickel, not silver. These will either have no mint mark, or a small D or P next to the tail of Washington's wig. Quarters minted for special proof sets have an "S" next to the wig. Some but not all of these were made from silver but they're in special packages and weren't put into circulation. "Gold" quarters The US has never minted gold quarters. A lot of private companies took ordinary state quarters, plated them in gold, and sold them at hefty markups as "collectibles". Any "gold" state quarters you find are from one of these sets. Coin collectors and dealers consider them to be altered coins, and generally won't pay anything extra for them. (MORE) 
