Collectible coins encompass a wide range of numismatic items, including currency that holds value beyond its face amount due to factors like rarity, demand, and historical significance. In the United States, the 25-cent quarter and the Flying Eagle Cent are notable examples. The quarter, especially in its various state and commemorative editions, is favored by collectors for its design and historical relevance. The Flying Eagle Cent, minted from 1856 to 1858, is particularly sought after due to its limited production and unique design, marking a transition in U.S. coinage.

Item Denomination Series Year Mint
United States of America 1857 Philadelphia Flying Eagle Cents 25¢ 25¢ (Twenty Five Cents, Quarter) Flying Eagle Cents 1857 Philadelphia