Collectible coins include a variety of types, such as circulation coins, commemorative coins, and patterns. The P25c refers to a specific 25-cent coin denomination, commonly known as a quarter dollar, issued by the United States. Patterns are experimental or trial pieces created to test new designs or technologies before officially producing a coin series. The 1868 patterns are notable for their unique designs and are highly sought after by collectors, often representing important historical significances in U.S. numismatics.

Item Denomination Series Year Mint
1868 P25c Aluminum J-650 P25c Patterns 1868 Philadelphia