I was walking to my friends house tonight and I noticed what I thought was a sewer cover of some sort. I have a random obsession with sewer covers. I Googled it when I got home tonight and I guess it’s a Coal hole. From the link I found this could be from 1845. It looks like it is missing most of the glass that they would use to look down and see if the coal was still burning.
http://glassian.org/Prism/Gallery/Covers/index.html