Prime picture: T. gibbosula and C. rustica shells found in layer 4c of your cave in Morocco, which ended up beads from precisely what is now referred to as the oldest jewelry in the world. Resource: A. Bouzouggar, INSAP, Morocco / Karen Loise van Niekerk does not perform for, consult https://medium.com/@spoilmevintagediy/the-rich-history-of-beadwork-a-journey-through-the-ages-4e4fd2e474cf