Bump. Here are some locations:
Manchester, MI (Edward Jones, Old City Hall) (M-5, Installed in 1917)
Adrian, MI (Siena Heights Campus, Weber Center) (M-10)
White Pigeon, MI (Library) (K-5)
Freeport, MI (City Garage) (Modified M-10)
Sentries:
Weston, MI (Fire Department) (7V8)
Jasper, MI (Fairfield Township City Hall) (7V8)
Fairfield Twp, MI (Codling Road and Adrian Highway by the pumping station) (3V8-H)
Colon, MI (Decker Road south of Colon) (10V)
Note: You might see a T-121 on aerial at Weston, but in 2019 it was replaced with the 7V8. There are videos of the 7V8, same with the T-121.