The Immune Columbia coin, minted in 1785, is a notable piece in the realm of collectible coins from the United States. It features a design that represents the allegorical figure of Columbia, symbolizing America. Made primarily of copper, these coins are part of a series intended to promote a national identity during a formative period in U.S. history. Collectors value them not only for their historical significance but also for their rarity and the craftsmanship involved in their production.