Collectible coins encompass a variety of types, including commemorative, bullion, and historical issues, that are sought after by numismatists and investors alike. The United States has issued a range of collectible coins, including the Five Dollar gold pieces, which often commemorate significant events or figures. The Shield Two Cents coin, minted from 1864 to 1873, is notable for its unique design featuring the shield motif, and it was one of the first coins issued in response to the need for small change during the Civil War era.