35mm Slide.
ORIGINAL 35mm SLIDE CLASS 170 UNIT 170434 AND CLASS 156 UNIT 156503
S19 35mm Slide Class 66 66058 Leamington Spa
S91 35mm Slide Class 47 47xxx (9)
S38 35mm Slide Class 43 43193 Oxford
S32 35mm Slide Class 43 43xxx Doncaster
S72 35mm Slide Class 43 43xxx Doncaster
