Collectible coins encompass a variety of types, including historical, commemorative, and bullion coins. In the United States, notable denominations include the Two and a Half Dollar (commonly referred to as a quarter eagle) and the Fifty Dollar gold coin. Patterns and trial coins represent experimental designs or compositions created for testing purposes before final production. These coins are often sought after by collectors due to their rarity and unique characteristics.

Item Denomination Series Year Mint
United States of America 1796 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1796 Philadelphia
United States of America 1831 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1831 Philadelphia
United States of America 1846 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1846 Philadelphia
United States of America 1857 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1857 Philadelphia
United States of America 1860 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1860 Philadelphia
United States of America 1861 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1861 Philadelphia
United States of America 1861 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1861 Philadelphia
United States of America 1866 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1866 Philadelphia
United States of America 1874 Philadelphia Patterns & Trial Coins $2.50 $2.50 (Two and a Half Dollars) Patterns & Trial Coins 1874 Philadelphia