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/

More unusual stuff from the HAMB thread "Vintage shots from days gone by"

Annette on a scooter Amelia Earhart with the scooter General Eisenhower chats with Omar Bradley leaning against his '41 Clipper staff car The outback mailman, on an enormous rig http://aso.gov.au/titles/documentaries/last-mail-birdsville/clip1/ Aerodynamic trucks and trailers looks like a street car getting relocated Sept 1949 Popular mechanics Not sure what the above vehicle is Kaiser