Wonderful! "Stop, Look, Listen"! :o)
I thought I had a video of the one at the NC Museum operating but can't find it. The one I posted is better though. Thanks again for the idea.
That is pretty cool! I have never seen one of them before. I will now be on the lookout!
Missed your comment earlier, my mail notification isn’t working. I don't recall ever seeing one as a kid. The first one was at the museum in Spencer, NC.