That was great! Lots of info and things seen from long ago! Remember the "stop, Look and Listen"?
Lots of information there. I think I will see if I can find one that explains how to read current signals. Be sure to check out the link to more information on the NS F-9A's. A couple of great photos. I remember the old crossing signals. May even have a pic or short video of one at the NC Transportation Museum. If I can find it I will do a post.