The value of a 1964 Washington quarter is primarily determined by its silver content, but its condition and mint mark can significantly increase its worth to collectors. As the last year the U.S. quarter was struck with 90% silver, its base value is tied to the current spot price of silver. This is often referred to as its "melt value."
A 1964 quarter contains 0.18084 troy ounces of silver, giving it a melt value of approximately $5.26 based on recent market prices. For a common, circulated coin that shows signs of wear, its value will typically be very close to this melt price. This is the minimum value you can expect for any 1964 quarter, regardless of its condition.
However, the quarter's numismatic value can be much higher if it is in uncirculated, or Mint State (MS), condition. The value increases with the grade. For instance, a typical uncirculated coin in MS 60 condition might be valued around $8.20, while a higher-grade MS 65 example could be worth approximately $16.50 to $20. For coins in exceptional condition, the value can rise dramatically. A top-graded MS 67 coin, for example, could be worth hundreds or even thousands of dollars to serious collectors.
The coin's mint mark also plays a role. Quarters minted in Philadelphia have no mint mark, while those from the Denver mint bear a "D." The Denver mint produced a higher number of quarters that year, making the Philadelphia issue slightly rarer and potentially more valuable in higher grades. There are also proof versions, minted in Philadelphia for collectors, which carry their own premium based on their pristine, mirror-like finish.
