Collectible coins encompass a wide range of numismatic items, including historical pieces, commemoratives, and currency from specific periods. In the United States, collectible coins include early state coinage and colonial coins, such as the 4p Four Pence minted in 1659. This particular coin represents a significant piece of American history, as it predates the country's independence in 1776 and is associated with the early colonial economy. Such coins are sought after by collectors for their rarity, historical context, and unique features.