Damn, did I get lucky or what!!??? Downers Grove

I've been searching eBay for years looking for Downers Grove stuff, junk, memorabilia, junk. I have never come across this license plate frame before. Can this be the only one in the world? Can it be the treasure I think it is??

I can't begin to imagine all the uses that there are for a prize like this,,, besides going on the front of a car.

I already have a few of these. Their role is to be fixed to the top of a license plate frame. In this instance that would be redundant.

                                                                       WOW!