Seen in Churchgate, Doncaster is this Sentinel STC4/40, GUJ457, with Sentinel B40F body operating for Morgan, Armthorpe (Blue Line). New in 1950 and originally a demonstrator it passed to Richardson, Thorne (Majestic Motors) who were taken over by Morgan in 1953.

Photo taken by John Kaye, Wednesday 31 July 1957, Churchgate, Doncaster