C.E. Schneider is a contractor I haven’t seen before, or at least haven’t taken notice of. This pair of stamps is on the north side of Prospect between Holmes and Virginia. Unfortunately, neither one is dated.
The only reference I can find to C.E. Schneider as a contractor is a brief obituary for Clyde Schneider (1920-2000) which states that he was “Owner and Operator of C.E. Schneider and Sons Cement Contractor.” It also says that he had been a resident of Mount Pleasant since 1998. Schneider is buried in DeWitt according to Find A Grave, so he might have been a DeWitt native. I would guess that C.E. Schneider and Sons was a metro Lansing business. I haven’t found out anything else about the company that would allow me to narrow down when the stamp could have been from.