Unusual rail road crossing sign, ever see one that says "Look out for the cars" ?

1939 photo above, below is one of the traffic signal towers I've been posting, it's from a 1918 photophotos from http://www.shorpy.com/

Old fashioned stop signs

The above probably looks nothing like anything you've seen before, but I did post one similar once before: http://justacarguy.blogspot.com/2010/03/museum-exhibit-you-wont-want-to-miss-if.html from http://www.jalopyjournal.com/forum/showthread.php?t=428585&page=733