"Shell money is a medium of exchange similar to coin money and other forms of commodity money, and was once commonly used in many parts of the world. Shell money usually consisted of whole or partial sea shells, often worked into beads or otherwise shaped. The use of shells in trade began as direct commodity exchange, the shells having value as body ornamentation. The distinction between beads as commodities and beads as money has been the subject of debate among economic anthropologists.
Shell money has appeared in the Americas, Asia, Africa and Australia. The most familiar form may be the wampum created by the Indigenous peoples of the East Coast of North America, ground beads cut from the purple part of marine bivalve shells. The shell most widely used worldwide as currency was the shell of Cypraea moneta, the money cowry. This species is most abundant in the Indian Ocean, and was collected in the Maldive Islands, in Sri Lanka, along the Malabar coast, in Borneo and on other East Indian islands, and in various parts of the African coast from Ras Hafun to Mozambique. Cowry shell money was an important part of the trade networks of Africa, South Asia, and East Asia." - (en.wikipedia.org 11.12.2019)
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