Collectible coins are items of numismatic interest, often sought after for their historical significance, rarity, and condition. The United States' one dollar coins have various designs, including the Coronet Head Cents, which were minted from 1816 to 1839. Specifically, the 1819 Coronet Head Cent was produced at the Philadelphia mint and features a classic design with Liberty’s profile. Collectors often value coins based on their age, minting location, and overall preservation state.