The vertical pieces in between rows are Bobkins bone hairpins with 8 bird points lining them. The 16 knives or spearpoints are from the Woodland period dating up to anywhere from the present up to 5,000 years old. The top left is a large knife or scraper, bottom left is an axe head, top right is a chisel, and the bottom right is a lance head believed to be 15-20,000 years old. Bottom center is a trade pipe.