This is a 16 inch wheel. It is 6 inches between the beads and has a 5 on 5 1/2 inch bolt pattern. The wheel has clips for hub cap retention. I think the longer number stenciled on the inside of the rim may be 27203.
I saw this sedan at Frankenmuth a few years ago. According to the new owner it was a barn find and had an Olds engine. The three window was parked just a few feet away. But didn't get to talk to the owner.
I have a Lincoln 16x5 with 5.5 bolt pattern and the wheel is even in Canada. Although at the over side of the country. The wheel has the clips for a hub cap and they are in good shape. I believe the wheel should clean up pretty good. Beads are not heavily pitted from rust.