Percussion replaceable cross bit - Same Davy's Lamp - Percussion Cross bit
Note that the Incan tumi is authentic. A real and confirmed arsenic bronze. These tools were used for the science and art of trephination. Cutting holes in the heads of the sick and possessed in order to release the demon inhabiting the patient's brain. Some Incan skulls show more than five healed trephinations, demonstrating that the procedure did not result in death. Probably 700 to 800 AD.”
Photograph by John Cornish, used with permission.
Percussion cross bit - sextant - mining engineer's altimeter
Carbide Lamp - Davy's Mining Safety Lamp - Incan Tumi - Carbide Lamp
Percussion replaceable cross bit - Same Davy's Lamp - Percussion Cross bit
Note that the Incan tumi is authentic. A real and confirmed arsenic bronze. These tools were used for the science and art of trephination. Cutting holes in the heads of the sick and possessed in order to release the demon inhabiting the patient's brain. Some Incan skulls show more than five healed trephinations, demonstrating that the procedure did not result in death. Probably 700 to 800 AD.”
Photograph by John Cornish, used with permission.
This photo has been shown 54 times