Collectible coins are numismatic items that hold value for collectors due to their rarity, historical significance, or unique features. Among such coins, patterns are specially made pieces that have been crafted to test new designs and compositions before official minting. The 1860 Philadelphia patterns, for example, included various denominations that were experimented with, often showcasing innovative designs that did not enter general circulation. These coins are prized by collectors for their artistic value and connection to U.S. coinage history.

Item Denomination Series Year Mint
1860 P$2 1/2 Copper J-270 RD P$2 1/2 Patterns 1860 Philadelphia