Trephine Drill - A 19th century trephine drill with ebony handle and two drill attachments. Artificial Leech - Bloodletting with leeches was such a popular treatment for a range of medical conditions that an artificial leech was invented in 1840 and was used frequently in eye and ear surgery. Dental Forceps - A pair of late 18th century French dental forceps for solar extractions. Amputation Knife - Knives used for amputations during the 18th century were typically curved, because surgeons tended to make a circular cut through the skin and muscle before the bone was cut with a saw. Skull Saw - This hand-cranked saw's blades were used to cut through sections of the skull, allowing for access by other instruments. Circumcision Knife - Ritual circumcision is performed around the world in varying extents and for varying reasons, but few instruments used in the process are as intimidating as this European knife from the 18th century. Cervix Dialator - This insttrument dates to 1880 was was used to dilate the cervix in labor. Hernia Tool - This unique tool was used after the restoration of a hernia. Gnathograph - With the aid of the gnathograph a dentist's patients may now be assured of a perfect fit for artificial teeth.