Does anyone know what happened to the Old City Hall historical marker?

https://detroithistorical.pastperfec...F-190942921250

http://www.michigandnr.com/publicati...C821958001.pdf

In the pdf, it says its location is at One Kennedy Square [[or 777 Woodward), but I've never seen it there and looking around the building on Google Maps, I don't see it.

Where is it? It would be nice to have a giant photo of it next to it to show people the beauty the city destroyed.