(1972, Anglia TV footage)

Shot for an Anglia TV documentary. Transport for this festival at Bardney in Lincolnshire was evidently provided by Hudsons of Horncastle.
This double decker is only distantly seen, in company with a coach:

Staplefords of Markfield 559PT is a 1960 Plaxton bodied AEC Reliance new to Wilkinson of Sedgefield:

Seen passing 559PPT is Hudsons WFW776J, a 1971 AEC Reliance/Plaxton:

Like WFW776J, 839EFU was new to Hudsons, another AEC Reliance/Plaxton, new in 1963: