Collectible coins are often valued based on factors such as rarity, condition, historical significance, and demand among collectors. The Washington Quarter, minted in the United States since 1932, features George Washington on the obverse and an eagle on the reverse prior to 1999. The 1940 Washington Quarter, minted at the Denver Mint (with a "D" mintmark), is part of a series that includes coins struck every year, and can be more desirable if in higher grades or with certain minting anomalies. Collectors often seek out specific years and mintmarks to complete their sets or invest in coins with high numismatic value.

Item Denomination Series Year Mint
1940-D 25c 25c Washington Quarters 1940 Denver