I’m glad you enjoyed it, @richhotrain.
By the way, do visitors to this thread think that the purpose of the “tell-tale” was to warn the brakemen on the roof? The Wikipedia author seems to think so, as does the site he referenced. In other words, they think that the owners and managers of the railroads were such cruel people.
So why were there “tell-tale” on roads and highways for cars? Were brakemen on trucks and buses too?
Quoted from “The World’s Railways in Pictures” published in 1962 (Crusader of the Reading Railroad)