Fig. 5From: Analyses and findings of unusual substitute materials in a raincoat from WWIIATR-FTIR spectra of the coating with assignments of the frequencies. Top: Spectrum of the coating before extractions (topside of sample 1) showing the characteristic frequencies of CN and plasticiser. Middle: Spectrum of the plasticiser extracted with chloroform (sample 2). Bottom: Spectrum of the extracted CNBack to article page