RARE Vintage Union Pacific System Motor Car Safety Plaque

UNION PACIFIC SYSTEM, THE OVERLAND ROUTE, SAFETY FIRST
STOP ACCIDENTS - THIS MOTOR CAR HAD NONE

Back side is stamped with "GUS PAVE FOX.CO. - CIN, O" making this piece very collectable.
See the backside pictures with the red arrow pointing at the stamped impression.

I have tried to give good pictures. I believe this piece to be in good shape for it's age.