Buxton and 40122 awaits to depart with the SEG/RCTS railtour the 'Buxton Belle' The class 40 would work the train to Manchester Piccadilly. I was on this railtour which originated at Waterloo and eventually arrived back there 60 mins late ( or on time for Railtour standard time!)
Slide dated 8/6/85.
Photographer unknown.
More details of the Railtour available here:-
http://www.sixbellsjunction.co.uk/80s/850608se.htm