PD3 107 looks very smart when nearly new at Grotton terminus. The conductor is taking a stroll off the picture to the right. These buses were not popular on this service, I understand the entrance layout slowed boarding and alighting and the pneumo-cyclic gearbox (along with them being bigger buses) affected performance. As a consequence they didn't last long before being moved to other services.

From an original slide in the David Beilby collection, photographer unknown