Based on Channel Islands artifacts, archaeologist Lynn Gamble argues the Chumash people were using a shell currency 2,000 years ago.
Paying With Shells: Cowrie Shell Money Is One of the Oldest Currencies Still Collected Today
Museum Bulletin I. What Is Money?
Shell Money: Most Up-to-Date Encyclopedia, News & Reviews
The Shape of Ancient Thought: Comparative Studies in Greek and Indian Philosophies: McEvilley, Thomas: 9781581152036: : Books
Cowrie shells money hi-res stock photography and images - Alamy
The History of Money, NOVA
The Country They Built: Dynamic and Complex Indigenous Economies
PDF) The Country They Built: Dynamic and Complex Indigenous
Shell Money: Most Up-to-Date Encyclopedia, News & Reviews
The Country They Built: Dynamic and Complex Indigenous Economies
Why Egyptians Hate Netflix's Queen Cleopatra