Oil Pan. For What?

Can anyone help me identify this oil pan? It is aluminum and is quite heavy. I thought it may be for a tractor, but I don’t know for sure. Any help is appreciated and what might it be worth?

 

Never got a response. Thought I’d try again.

 

Haas the appearance of a 32 ford oil pan. I believe they were aluminum for 32. Minimum $400-500

 

It is a flathead oil pan. It is not for a car. Flatheads were used in all kinds of weird applications. It may be out of kind of WW2 military use or maybe a heavy truck. They were even tried in airplanes. Pumps or standby generators were also uses.
I don't see any hot rod use for it other maybe cut down and re-fabricated to look like a 32 pan.