Top rated impression: T. gibbosula and C. rustica shells found in layer 4c in the cave in Morocco, which ended up beads from what's now often called the oldest jewelry on the planet. Resource: A. Bouzouggar, INSAP, Morocco / A few of the most common styles Utilized in Native American https://egyptianbeadwork24456.blogsmine.com/31550711/the-ultimate-guide-to-renaissance-bead-trade