An emergency siren in 1896 this would have been a helpful asset. On May 25th 1896 a monster F5 tornado tore up 30 miles of Northern Oakland County. This siren is located where the tornado was first spotted.
Here is a video of the siren test which was about 4 minutes late. The tests are supposed to start at 1pm on the first Saturday of the month (warm months). https://youtu.be/pJPBTJBfR-M
The siren is a Federal Signal model 2001-130 and is a rather new installation.