The Leonards - mother Margaret and two daughters Vera and Dorothy are London Transport conductors. They are seen arriving for work and departing on three different G-class Guy Arab II/Park Royal. Only the second vehicle's licence plate is clearly seen; it is G94 (GLL593).
Several other Guys are seen parked at the garage, which Colin Moon confirms is Alperton; "Parts have not changed and are clearly recognisable. The large entrance behind the departing buses is now the centre door facing Bridgewater Road inside of which is now located the bus wash. The building with the white stone band where the clippies are seen emerging was, and is still, the Output Building and Canteen. The building not visible in the clip, that was immediately adjacent to the garage, was a generating station for power to the Piccadilly Line. When it became obsolete this building was merged with the original site to enlarge the bus garage."