The 1863 Two Cent coin, part of the United States collectible coins, was a product of the Civil War era, reflecting the need for smaller denomination coins in circulation. Patterns and trial coins, like the 1863 Two Cent, are experimental or prototype issues that often feature unique designs not seen in regular production pieces. These coins are highly sought after by collectors due to their historical significance and rarity, with variations often commanding high premiums in the numismatic market.