Dental Unit, Sterling Servitor, model EX, by Amalgamated Dental Engineering Industries Ltd., Walton-on-Thames, England, c.1962 Dental Unit 1960-1965
Dental unit model D52, by Ritter AG., Durlach, Germany 1928, with various non-standard later fittings, c.1965 Dental unit model D52 1928
"Alston" dental unit, cream painted steel, by the Dental Manufacturing Co., England, 1962-1968 "Alston" dental unit 1962-1968
Electrical switchboard, for use in dental surgeries, by the Dental Manufacturing Co., London, 1910-1925 Electrical switchboard 1910-1925