This stamp is on the west side of Bingham Street between Michigan and Prospect, in front of the parking lot for the Pilgrim Congregational church. That’s where I vote now that Bingham (Street) School is gone.

This one is interesting because of its date. 1970s stamps are the least common decade I find (that is, from the 1920s on). There are a lot of 80s stamps, a fair few 60s stamps, but only a smattering of 70s stamps around the east side.

Unfortunately, this is one of those cases in which the contractor’s name is too common for me to narrow down who it is. I can’t find a history of a Carlson Construction company in metro Lansing, though there have been Carlsons in Benton Harbor, Byron Center, Otsego, and Saranac, the last being the closest.