What's it worth to you? Shells were used as money in lots of places in early times. It wasn't just money cowries in the Pacific, like I used to think. The ancient Egyptians were among those monetized by shells. These cowries are native to the Red Sea, and were among those with value in those ancient markets. They would have been worth whatever the people believed they were worth. Kind of like an ancient version of bitcoin. Satoshi Nakamoto has been around for thousands of years!