Schimmelbusch's Collapsible Mask Schimmelbusch's collapsible mask (adult size). Chrome/nickel plated. This mask would have been used to administer anaesthesia to a patient. A gauze would be placed within the mask and held down by the grid. The gauze would then be doused in anaesthetic and inhaled by the patient. <a href="https://heritage.rcpsg.ac.uk/items/show/1249">Schimmelbusch; Dr; Curt Theodor (1860-1895); Physician and pathologist</a> c. 1890-1940 2007/1.10