Collectible coins are usually issued to commemorate significant events or themes, and modern commemoratives are a popular category within numismatics. The United States Mint began producing modern commemoratives in 1982, with coins such as the 1999 One Dollar coin featuring designs that honor various American achievements and anniversaries. The Philadelphia Mint, one of the primary facilities for coin production, played a significant role in striking these coins, which are often sought after by collectors for their historical significance and artistic designs.

Item Denomination Series Year Mint
1999-P (Philadelphia) Modern Commemoratives $1 (One Dollar) Modern Commemoratives 1999 Philadelphia
1999-P (Philadelphia) Modern Commemoratives $1 (One Dollar) Modern Commemoratives 1999 Philadelphia