Major picture: T. gibbosula and C. rustica shells present in layer 4c of the cave in Morocco, which have been beads from what is now generally known as the oldest jewelry in the world. Supply: A. Bouzouggar, INSAP, Morocco / Since the beads are sometimes fragile at the same time, https://emilianooolik.jaiblogs.com/58075204/a-simple-key-for-bead-embroidery-unveiled