I was asking about the number boards when I saw the topic. I often wondered if there was a regulation calling for them. A lot of times when rail fanning I would see them both ways, on or off but everything would be dark. Didn't know if a crew accidently left them on.
Would number boards been used as night lights??? I know it can be super dark out there and it wouldn't be fun trying to climb on a loco that is having issues. I have my lantern at all times when running Late night Dinner trains.
