This is one of the entries in the Commercial Vehicles over 3 tons, Class G, at the Trans Lancs Historic Vehicle Rally at Heaton Park, Manchester in September 1993.
It's a 1961 Foden S20 and the programme of the event had this information about it:
G6 Foden S20, 1961 763 BWA
Entered by W.H.Church, Keighley
Owned until 1974 by a Sheffield steelworks and then by R Church, a travelling
showman, until 1990. Fully restored as a showman's vehicle.
The Foden Society is 'An independent society dedicated to the study and preservation of Foden products from 1856 to date'.