Is anyone able to ID these old wheels?

My father is dying for an identification of these old wheels. He thinks they are from the 1930s. They were originally on a car, but my grandfather put them on a trailer.

Please let me know if you need more information.

Even if you are not able to ID them, I would still really value any information at all or direction in which you could point me.

Thank you!

Note: we are wondering about the actual wheels, not the tires

I work on and enjoy old farm equipment. The wheel, depicted in your picture, is most likely from an old piece of farm machinery. This style wheel was not used, from the factory, on automobiles. What size tire does it have on it? a 16"? It is likely that someone installed this wheel on a car in place of the original. If I have some extra time I could post a picture or two of some farm machinery with this style wheel.

Regards, Alan

Definitely off of farm equipment. Looks as if the tires are 15". Look very similar to front wheels on a John Deere Model B.