Shame about the signalling! W24W was built for the Great Western in 1940 , continuing the original pre War building programme for what eventually became a total of 38 of these Railcars , but there were wide variations in design and use , this one having the sharp and angular ends , whilst others were rounded at the front and rear. I may well be wrong, but this picture could well depict a service on the Temple Meads to Avonmouth and Severn Beach line , as examples of these units were used on those duties. Designed to carry 48 passengers , this example had twin engines producing 210 brake horse power , the power units and transmissions being built by A.E.C. at Southall , whilst Swindon did the bodywork and , on the later versions , the chassis as well. Sister Railcar W22W is preserved by the Great Western Society at Didcot. If I was correct in my earlier remark about this being a Severn Beach working then it would show W24W coming back into Temple Meads after having worked one of the so called ' Rounder ' runs and returning back , not via Avonmouth as on the outward run , but via Pilning and Patchway . This is certainly the eastern side of Temple Meads , and St . Philips Marsh rostered its railcars to services to Bath so that could also be the explanation .