There was a button museum at the time, though I never made it in. I'm not sure if the museum is in the same spot as the restaurant was, as I was there in 2017.
One block over from the museum, there was recently a partial building collapse. 20 buildings were evacuated and 17 are still not able to be occupied.
Reminds me of the famous Keswick pencil museum: https://www.derwentart.com/en-gb/c/about/company/derwent-pen...
I think the museum is a different spot nearby.
I found the restaurant on google street view, the pictures go back to 2008! https://maps.app.goo.gl/UxWzN5bcd4cLG6eH9