Three sections of Serck honeycomb tube blocks (80mm, 100mm, and 120mm length) from car radiators, c. 1919 Sections of motor car radiators 1919
Sectioned "Smithermet" type X.19800 radiator thermostat. One radiator shutter with controls type Y.21593. Made by S. Smith & Sons (M.A) Ltd., 1931. Sectioned "Smithermet" type X.19800 radiator thermostat 1931