This is a complete proof set of United States coins from the US Mint. The set includes coins from the years 1999 to 2010, all of which are uncirculated and in excellent condition. The coins are made of clad composition and were struck at the San Francisco Mint location. The set is ungraded, but comes with certification from the US Mint. Ideal for collectors of US coins, this complete set is a must-have for any serious numismatist. Three complete sets are available.