At first I thought this one was just plain illegible, but after studying my photo at home, I realized it is probably McClain. I have done them before, and their other stamps have also tended to be blurry. The date is hopeless.

It’s in front of Edge Partnerships, a PR firm, on the north side of East Kalamazoo Street between Grand and Washington. This building was formerly home to longtime business Wolverine Typewriter. I am not sure when they first opened and finally closed, but as they were in this location from at least 1949-2001, their employees probably saw this sidewalk laid.