Can anyone tell me about these signs I found in a barn?

All I know is they are metal, tin or not, I do not know. Curious about their history, if any? Where possibly did they originate? I was in the middle of a barn find car purchase, and these where just laying on the floor in the corner. They as far as I can see that they are in excellent condition. Have not cleaned the dust and grime off of them. Need to possibly know more about them, so as not to mess them up. One has a very slight bend at the corner, but barely noticeable. Thought they were cool, and the lady just let me have them. Plan on hanging them in my cave, either way.