What This Coin Looks Like (Obverse, Reverse, Mint Mark Location, Special Features, etc.): The "P" mint mark was added to the Washington Quarter in 1980. Traditionally any coin without a mintmark is assumed to be minted in Philadelphia. All modern quarters since 1980 now bear the "P" mint mark.
Coin Value Chart: Typical Coin Prices, Values and Worth in USD based on Grade/Condition