Need help to identify Artist

I like it. The machinery is kind of indeterminate, the catipilar tracks say post forties, so the '65 works as a date. Is kind of naive so I get a newer artist or student. Are there any marks on the back? How about a detail photo of the back so we can see the canvas back and the construction and depth of the stretcher. What are the dimensions of the piece?

Is there a frame and can we see that? Do you have a close up of the signature to share?

It was a early Judith Margolis.

Niiiiice. Good catch!