The Massachusetts Copper, minted in 1787, is a notable type of collectible coin in American numismatics. It represents one of the earliest attempts at creating a state coinage in the United States following the American Revolution. The coin features the Latin phrase "Mind Your Business" and depicts a tree on its reverse, symbolizing the state. Its historical significance, combined with limited mintage and unique design, make it highly sought after by collectors. The Massachusetts Copper is part of the broader category of early American coins, which includes various denominations and designs reflecting the country's formative years.