Physical description
Black and white photograph of a Boyle's anaesthetic machine. The light-coloured metal frame on castors has a metal top with a flowmeter attached to the top, and there is one drawer at the bottom of the trolley. One side of the trolley has two vaporisers connected to two corrugated tubes with a facemask. An oxygen cylinder and two nitrous oxide cylinders are on the other side of the machine along with a small cyclopropane cylinder.