Collectible coins are a significant segment of numismatics, encompassing various types, including historical coins, commemorative issues, and errors. In the United States, five-cent denominations like the nickel and the half dime are notable for their unique designs and historical context. Trial coins, especially patterns minted in Philadelphia in 1870, are particularly prized among collectors due to their rarity and the insight they provide into the coinage development process. These trial pieces were often created to test new designs or compositions, making them essential artifacts in American numismatic history.

Item Denomination Series Year Mint
United States of America 1870 Philadelphia Patterns & Trial Coins 5¢ 5¢ (Five Cents, Nickel, Half Dime) Patterns & Trial Coins 1870 Philadelphia