This was one of the entrants in the Trans Lancs Historic Vehicle Rally at Heaton Park, Manchester in September 1996.
It's a 1956 Daimler CVG6 with Northern Counties H58C body. The programme of the event had this to say about the vehicle:
Daimler CVG6, Northern Counties H58C Body, 1956 VTU 76
Entered by D.A.Jones, Burnley, Lancs
Former Operator - S.H.M.D. Last survivor of a batch of 6 unique centre entrance vehicles, withdrawn as S.E.L.N.E.C. 5676 in 1972. Now based at Keighley Bus Museum. S.H.M.D. (What do the letters stand for?)
Presumably whoever wrote these words knew what the letters stood for - it's the Stalybridge, Hyde, Mossley and Dukinfield Transport and Electricity Board. I don't know the date of the dark green livery - when I used the buses to travel from Denton to Manchester between 1960 and 1968 they were a much lighter shade of green.