Washington Quarters are a series of 25-cent coins featuring George Washington on the obverse and an eagle on the reverse. The 1966 Washington Quarter, minted in San Francisco, is part of the program that began in 1932 and continued through 1998. Coins produced in San Francisco can be identified by their "S" mintmark. Collecting quarters from this era is popular among numismatists, and the condition of the coin (graded by standards such as MS or PR) significantly affects its value.

Item Denomination Series Year Mint
1966 25c Special Mint Set 25c Washington Quarters 1966 San Francisco