Thomas Wilson Parry 1866 - 1945

Trephine used in experiments on Neolithic trephination

Trephine, in form of bow-drill shaft

Obsidian possibly used in trephination experiments

Bow used for trepanning experiments, 1930-1970.

Trephine used in experiments of Neolithic trephination

3 pieces of obsidian and 1 piece of slag

Piece of glass

Drill, flint arrowhead and wooden shaft

6 pieces of glass

One of four flint instruments

Obsidian, possibly used for trephination

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