In the back of my mind there was a restaurant at KI that had the selections in glass boxes (kind of like a locker) that you opened to get your food.  As a kid in the 70's I always thought that was the neatest thing.  I mentioned it to my wife, and she doesn't remember anything like that.  We both would have visited KI several times between 1972 and 1984, but not together.  I have searched for pictures or any proof that it existed without success.  Does anyone recall anything like this?

Some form of Automat (https://en.wikipedia.org/wiki/Automat)?

I have no idea if Kings Island ever had one, but it seems to be the concept you're describing.

Yes, very much like one of those.  I will keep searching.

Thanks