Mark 1 BSK M34467 at Horwich Works.
BR Mark 1 coaches are stripped for conversion to overhead line maintenance vehicles at Horwich Works on the 16th August 1980, for the Bedford to St Pancras electrification scheme. Former BSK M34467 was originally built by the Gloucester Carriage & Wagon Company in 1954. After conversion to departmental use, the coach was numbered ADB975682.