Hartridge's Reversion Spectroscope. Used for measuring carboxyhaemoglobin in blood. Wood & glass. With mains plug. Sealed rectangular wooden box with nine small drill holes mounted on top of smaller wooden box with metal plates. Lower box has plastic knob on one side. Base of lower box extends to one side with two wooden runners screwed in place and a rule glued to a light wooden runner at right angles to the extension. Metal plate has circular glass window above rule and upper box has metal plug attachment with black and red fabris covered cord ending in plastic mains lug. Bone maker's label on back of upper box.
Asbestos Inspection - Non-Asbestos.
