Collectible coins, particularly U.S. quarters, can vary significantly in value based on factors such as rarity, condition, and mint mark. The Washington Quarter, introduced in 1932, features a depiction of George Washington on the obverse and an eagle on the reverse. The 1956 Denver Mint quarter (marked with a "D") is one of the circulated varieties, and while it may not be particularly rare, its condition can influence its market value among collectors. High-grade examples of this coin are more sought after and can command premium prices.

Item Denomination Series Year Mint
1956-D (Denver) Washington Quarters 25¢ (Twenty Five Cents, Quarter) Washington Quarters 1956 Denver