Collectible coins from the United States include various types, such as patterns and trial coins, which are often produced in limited quantities for testing designs before mass production. The 1827 patterns and trial coins, for example, were struck in Philadelphia and hold significant numismatic value due to their rarity and historical context. The twenty-five cents quarter, commonly known for its portrayal of George Washington or state designs, is a prominent example of U.S. coinage that has captivated collectors. Collectors often seek these coins not only for their monetary value but also for their artistic and historical significance.

Item Denomination Series Year Mint
United States of America 1827 Philadelphia Patterns & Trial Coins 25¢ 25¢ (Twenty Five Cents, Quarter) Patterns & Trial Coins 1827 Philadelphia