African Copper Manilla proto-coin - Lot 1 of 2

Manillas are a form of commodity money, usually made of bronze or copper, which were used in West Africa. They were produced in large numbers in a wide range of designs, sizes, and weights. Originating before the colonial period, perhaps as the result of trade with the Portuguese Empire, manillas continued to serve as money and decorative objects until the late 1940s and are still sometimes used as decoration on arms, legs and around the neck. In popular culture, they are particularly associated with the Atlantic slave trade.

Source: Wikipedia