Silver Service of Darley Dale, near Matlock, LRB62, an A.E.C. Regal III 0962094 new in December 1947 with Duple C35F body, Yeates full front added 1959 and withdrawn in August 1969 (thanks to Andrew Critchlow for this info, source P.S.V. Circle Fleet History PE10).
Alongside is an ex-Halifax Albion Nimbus with Weymann B31F body, still in its Halifax colours, almost certainly RJX252 which was sold to Silver Service in early 1967 after just three or four years in service with Halifax.

Photo taken by Ian Banks, 1967
Click here for Ian's Fotopic site