The signal came from Ohio and it was originally used on the Erie RR Cleveland sub. The guy who it owned had passed away and his widow was selling off his collection of RR signaling equipment. I bought a bunch of the stuff- 2 semaphores, I think 3 search light signals some 2' rail cars and a bunch of other miscellany.
You can see more pictures of the narrow gauge RR on our Facebook page and website if you like.