Anyone have one of these? Mine's rusted to a pulp, as you can see below. It can't be attached any more because the mounting bracket is rusted right off on one side. The lens is OK. Just need the base.

I'm guessing this will interchange with other full-size '73 Oldsmobiles, maybe other years in the vicinity of 1973 as well. I've put a ruler down next to it to give a sense of the size.

Thank you.