This tool could also be used as a destructive instrument. This instrument was used by Dr Fritz Duras (1896-1965), who moved to Australia from Germany in 1937. As his father was Jewish, Duras was forced to leave Germany , and came to Australia to take up a post as director of physical education at Melbourne University. Stainless steel dilator with three blades. There is a ratchet at the top of the handles to control the expansion of the arms of the dilator. One arm of the dilator is engraved with the text 'HATRICK'. The second arm of the dilator is engraved with the text 'LONDON'."HATRICK'/'LONDON'destructive instruments, obstetrics

Sidney Yankauer, M.D. (1872-1932), an ear, nose and throat specialist and pioneer in bronchoscopy, practiced at the Mount Sinai Hospital in New York. Dr. Yankauer, a prolific inventor of medical equipment, might best be known for the tube he designed for suctioning the mouth and throat. Yankauer introduced the wire-mesh anaesthesia mask around 1904. The drop method involved placing the mask over the patient’s nose and mouth, and then placing gauze over the mesh of the mask. Next, liquid anaesthetic, such as ether or chloroform, was applied in drops or lightly poured onto the gauze so that the patient breathed in evaporated anesthetic as well as air. The gutter around the base of the mask was designed to catch any residue of the harmful anaesthetic. (The Wood Library Museum, 2016; Museum of Healthcare Kingston, 2016)A metal tear-shaped mask with gauze wire dome, gutter around the base and detachable spring piece with open circular handle to secure cloth over gauze. Found inside medical carry box #899Stamped underneath neck of circular handle: HATRICKdr [e.s.] holloway, hatrick, yankauer, drop method, mask, gauze

Provenance unknown, found in a box with five other pelvimeters, marked "PELVIMETERS ( not accessioned)" in the hand of the previous curator, Melissa Campbell pre 2006.Skutsch's's pelvimeter,external and internal, pewter with two flexible arms to attach to the pelvimeter. t, one rigid arm is missing. Refer to Down Bros. catalogue 938/4, page 938. Manufacturer's stamp "HATRICK" on arm.pelvimetry