Quarters produced at the Philadelphia and Denver Mints feature the P and D mint marks respectively. In 2010 and 2011, the San Francisco Mint (S mint mark) produced quarters exclusively for the annual Proof Set.

Where are U.S. quarters made?

They were issued from 1932 through 1964. The current rarities for the Washington quarter "silver series" are: Branch mintmarks are D = Denver, S = San Francisco. Coins without mintmarks are all made at the main Mint in Philadelphia.

How can you tell where a quarter was minted?

A mint mark is a letter or other symbol that identifies the mint at which a given coin was made. On most U.S. coins, the mint mark will be a D (for the Denver or Dahlonega mint), an S (for San Francisco), P was used (for Philadelphia), CC (for Carson City.) or a W (for West Point).