Collectible coins encompass a diverse range of numismatic items, including historical coins, commemorative issues, and patterns, which are experimental pieces struck to test designs or production methods. In the United States, collectible coins often feature unique designs, significant historical events, or prominent figures. The term "patterns" refers specifically to trial coins that were created in limited quantities and are not intended for circulation, making them highly sought after by collectors. These coins can represent significant milestones in U.S. minting history and often carry a premium value in the marketplace.

Item Denomination Series Year Mint
1831 P$ 2 1/2 Silver J-49 P$ 2 1/2 Patterns 1831 Philadelphia
1846 P$ 2 1/2 Copper J-110a BN P$ 2 1/2 Patterns 1846 Philadelphia
1857 P$2 1/2 Gilt Copper J-189 P$2 1/2 Patterns 1857 Philadelphia
1860 P$2 1/2 Copper J-270 RD P$2 1/2 Patterns 1860 Philadelphia
1861 P$2 1/2 Copper J-282 BN P$2 1/2 Patterns 1861 Philadelphia
1865 P$2 1/2 Copper J-439 RD P$2 1/2 Patterns 1865 Philadelphia
1866 P$2 1/2 Nickel J-542 P$2 1/2 Patterns 1866 Philadelphia
1867 P$2 1/2 Copper J-595 BN P$2 1/2 Patterns 1867 Philadelphia
1868 P$2 1/2 Aluminum J-654 P$2 1/2 Patterns 1868 Philadelphia
1869 P$2 1/2 Copper J-769 RD P$2 1/2 Patterns 1869 Philadelphia