This 1979 Washington Quarter is a unique find for any coin collector. With a filled mint mark error, this coin was originally struck at the San Francisco mint, but bears the "D" mint mark which was punched into the die. The coin is composed of copper nickel clad, with a satin finish and a fineness of 0.9.

The grade of the coin is ungraded, and it is certified as uncertified. It is a circulated coin and has a denomination of 25C. The year of the coin is 1979 and the variety is the mint mark error. The coin is a business strike type and has the KM number A164.a. This rare find also features an error, with the "S" mint mark being visible under the "D" mint mark.

Item 449