Collectible coins encompass a wide variety of numismatic items, including patterns and trial coins that are often produced as part of the coin design process. The 1874 Philadelphia ten cents dime is an example of a pattern coin, which is a proposed design submitted for approval before entering mass production. These coins are typically struck in smaller quantities and can exhibit unique features compared to regular issue counterparts, making them desirable to collectors. The rarity and historical significance of such coins accentuate their appeal and value within the numismatic community.

Item Denomination Series Year Mint
United States of America 1874 Philadelphia Patterns & Trial Coins 10¢ 10¢ (Ten Cents, Dime) Patterns & Trial Coins 1874 Philadelphia