Thanks! It was exactly as you described it. I was able to put in a reasonably bright lightbulb and clean many years of dirt off the inside of the glass.

I have this porch light which I have not yet had to change (we bought the house in 2019). It is super dim and I'm looking into putting brighter bulbs in it or replacing it entirely. I'm stuck at the beginning, how to I take the plate off to change out the bulbs? I do not see any screws and I don't want to just pull it off if that's not the correct way to do it. Any help would be appreciated.