I need some help identifying these, I'm looking on info on manufacture, configurations, ect. I have no idea what you call it besides "Caution High Speed Trains" sign.
From what I can tell....
There are stand alone - non powered units, by Marx?
Electrified unit --- I guess a bell sound or something?
Ones with physical bells:
And then....this guy.... That i think has a swinging arm (manual?) and bell???
Any of these come with lights? What are these called? anyone have any photos of ones in use?