I photographed this vehicle in Heaton Park, Manchester at the Trans Lancs Historic Vehicle Rally in September 1993.
It's a 1961 Scammell Scarab, and the programme of the event said this about it:
Scammell Scarab, 1961 8243VM
Entered by JL & B Nuttall, Clwyd
New to Manchester Public Libraries. Acquired for preservation in 1991.
On 19 January 2015 I showed a photograph of this vehicle at the 1996 event.