Infrared spectrometer, Perkin-Elmer, Model 225, West German c. 1965, Range 5000-200 wave numbers. Infrared spectrometer
Perkin-Elmer gas chromatograph, model 452, with six metal columns (some lagged), Bodensee FRG, 1958-1959 Perkin-Elmer gas chromatograph circa 1958