I came across this postwar training film of the Great Northern Railway while looking for something else. It is a 35 minute film, but is fascinating from a number of perspectives. It is a training film for employees of the GN, and has a number of safety vignettes, but also has a large number of shots of both steam and diesel locomotives in use, as well as great shots of mid-century freight trains and all the cars of different shapes and sizes. It makes running scale boxcars with 6464s look prototypical! I especially enjoyed shots of the foremen chastising the employees for safety rule violations. Its a fairly long film, but I suspect some of you will enjoy it.
By the way, at 31:40 and again at 35:04, they use model trains to demonstrate the need for excessive speed rules within yard limits. They appear to be 0 Scale trains, but I suppose they could be S or HO, also. Can anyone identify the locomotive?