Collectible coins encompass a wide variety of types, including ancient coins, bullion coins, and commemorative pieces. Within the United States, collectible coins often feature significant historical events, notable figures, or unique designs. The G 2 1 2 designation may refer to a specific grading or identification system for coins. J J Conway Co's involvement suggests a relationship to coin minting or trading, with the year 1861 potentially highlighting a notable period during the Civil War, when coinage was affected by economic conditions and changes in currency.

Item Denomination Series Year Mint
(1861) G$2 1/2 J.J. Conway & Co. K-1 G$2 1/2 J.J. Conway & Co. 1861 Georgia Gulch, Colorado