Leading graphic: T. gibbosula and C. rustica shells present in layer 4c from the cave in Morocco, which were being beads from what on earth is now generally known as the oldest jewelry on earth. Source: A. Bouzouggar, INSAP, Morocco / Native American beadwork can be a method of art https://muranoglassbeads85295.bloggosite.com/37718138/ancient-ornamentation-an-overview