Obsidian possibly used in trephination experiments
1918-1920
Brace and bit cranial trephine
1701-1800
Trephine used in experiments on Neolithic trephination
1918-1920
Brace and bit cranial trephine without bit
1601-1700
Bit from cranial trephine
Bit from cranial trephine
1701-1900
Copy of Roman bow drill for trephining, bronze
1901-1936
Trephine attached to drill stock with bevelled gear action
1910-1940
Von Hippel-type clockwork trephine, London, England, 1901-1930
1901-1930
Horsley's trephine without handle
1901-1928
Wood and shell trephine, England, 1900-1915
1900-1915
Brace and bit cranial trephine, Germany, 1701-1800
1701-1800
Trephine used in experiments of Neolithic trephination
1918-1920
3 pieces of obsidian and 1 piece of slag
1918-1920
One of four flint instruments
1918-1920
Obsidian, possibly used for trephination
1918-1920
One piece of obsidian, possibly used for trephination
1918-1920
Cranial trephine with two bits, Europe, 1601-1800
1601-1800
Bit from cranial trephine
Bit from cranial trephine
1701-1830
Bit from cranial trephine
1771-1900
Brace and bit cranial trephine
1601-1800
Brace and bit cranial trephine without bit
Horsley's trephine without handle
1901-1940
Cranial trephine with wooden handle
Brace and bit type cranial trephine with crown saw bit
1501-1700
Trephine with bit attached
1780-1820
Bronze copy of Roman trephine
100 BCE-100 CE
Copy of Roman bow drill for trephining, bronze
1901-1936
Brace and bit cranial trephine without bit
1701-1800
Three trephines with Horsley's handle, London, England, 1939-1945
1939-1945
Horsley's trephine
1901-1930
Circle of wood held in palm to steady drill whilst operating bow during trephination
1913-1920
4 trephining instruments of flint with serrated cutting edges
1918-1920
Trephine used for experiments of Neolithic trephination
1918-1920
One of four flint instruments
1918-1920
Flint instrument used by T Wilson Parry for trephination experiments, England, 1918-1920
1918-1920
One of four flint instruments
1918-1920
One piece of obsidian, possibly used for trephination
1918-1920
Wooden bow drill used in trephination experiments, England, 1918-1920
1918-1920