Infrared spectrometer, Hilger & Watts Ltd, H 800 double beam model, c. 1955 Infrared spectrometer 1955
Infrared spectrometer, Perkin-Elmer, Model 225, West German c. 1965, Range 5000-200 wave numbers. Infrared spectrometer
Perkin Elmer 180 Infrared Spectrometer, serial no. 59146, made by Perkin Elmer Instrument Division, Norwalk, Connecticut, USA, with Perkin Elmer 180 Recorder Console, and instruction manual, c. 1970 Perkin Elmer 180 Infrared Spectrometer 1970
Infrared spectrometer IR9 and chart recorder, by Beckman Instruments Incorporation, United States of America, 1964 Beckman Infrared spectrometer IR9 and chart recorder 1964
Unicam SP100G infrared spectrometer, c. 1950, serial no. 25343 Unicam SP100G infrared spectrometer 1950
Infrared spectrometer, Perkin-Elmer model 21, presented to H.W.Thompson by Richard S. Perkin in 1951 Infrared spectrometer 1951