Collectible coins encompass a variety of types, including historical, commemorative, and trial coins. In the United States, trial coins serve as experimental pieces for testing designs or minting processes before final production. An example is the 1836 trial coins, which were produced to evaluate new concepts in coinage, often featuring unique designs or compositions that differ from standard circulating coins. These trial coins are highly sought after by collectors due to their historical significance and limited availability.

Item Denomination Series Year Mint
1836-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1836 Philadelphia
1836-P (Philadelphia) Patterns & Trial Coins Other / Varied Patterns & Trial Coins 1836 Philadelphia