"Sol" simple fan-driven electric hair dryer with switch giving two heat settings, aluminium with wooden handle, German, 1920-1930 Sol hairdryer, Germany, c 1925. 1920-1930
Cambridge Transrite cardiograph Mark 2 electrocardiograph machine, no.C647127, by Cambridge Instrument Co. Ltd., English, 1959 Cambridge Transrite cardiograph Mark 2 electrocardiograph machine 1959
Dental electroplating apparatus, home-made, by R.K. Burnett, London, 1955-1970 Dental electroplating apparatus 1955-1970
Set of six (identical) Centrifuges by Eureka Scientific Company, Ilford, RPM 2000 Set of six (identical) Centrifuges by Eureka Scientific Company 1945-1960