Greetings from Michigan! Been a long time but am from way back to the Blake Woods and Adam Smith days of early internet siren forums!
Found this gem today on Facebook from a local hardware store in Michigan. As a fire department and siren buff, reading local history books stated that this particular town purchased their first fire siren in the late 1920s for $400 and some odd dollars. By the looks at the vehicle in front of building, this is likely their original siren. It was later replaced by an ACA Screamer (used as a noon, six o'clock, fire, and tornado whistle) which has since been removed and a Federal 2001 is used for tornado warning only.
I'm trying to get some more historical pics from the business owner that might show this old siren in a clearer manner. But in the meantime, any possible ideas what it might have been? Late 1920s.
Thanks!