Collectible coins encompass various types, including patterns and trial coins that hold historical significance. The United States, through its coinage, produced a notable example with the 1792 ten-cent dime, which represents the early stages of American currency development. Patterns are coins struck for testing designs or production methods, while trial coins serve similar purposes, often showcasing unique features not found in regular circulation. These items are highly sought after by collectors for their rarity and historical context.

Item Denomination Series Year Mint
United States of America 1792 N/A Patterns & Trial Coins 10¢ 10¢ (Ten Cents, Dime) Patterns & Trial Coins 1792 N/A