Collectible coins, particularly the United States quarter series, include the 25-cent coins that feature various designs representing each state and territory, known as State and Territorial Quarters. Launched in 1999, this series concluded in 2008, with special issue coins released in 2009, commemorating the District of Columbia and U.S. territories. Coins minted at the Philadelphia mint can be identified by their "P" mint mark, contributing to their collectibility, especially in uncirculated or proof conditions. Collectors often seek these quarters for their historical and artistic significance, as well as for potential increases in value over time.

Item Denomination Series Year Mint
2009-P (Philadelphia) State & Territorial Quarters 25¢ (Twenty Five Cents, Quarter) State & Territorial Quarters 2009 Philadelphia
United States of America 2009 Philadelphia State & Territorial Quarters 25¢ 25¢ (Twenty Five Cents, Quarter) State & Territorial Quarters 2009 Philadelphia