3 pieces of obsidian and 1 piece of slag
- maker:
- Thomas Wilson Parry
3 pieces of obsidian and 1 piece of slag, owned by Dr. T. Wilson Parry and possibly produced and used by him in experiments on neolithic trephination, England, 1918-1920
3 pieces of obsidian and 1 piece of slag, owned by Dr. T. Wilson Parry and possibly produced and used by him in experiments on neolithic trephination, England, 1918-1920