Collectible coins, such as the Washington Quarter, represent a significant area of numismatics, particularly in the United States. The 25-cent coin, introduced in 1932 to commemorate George Washington's 200th birthday, features his image on the obverse and an eagle on the reverse. The Denver Mint produced various issues of the Washington Quarter, including those from 1959. Coins from this era can be highly sought after by collectors, especially in higher grades or with unique mint marks, such as the "D" for Denver, which can enhance their value.

Item Denomination Series Year Mint
1959-D 25c 25c Washington Quarters 1959 Denver