Hey all, I haven't posted in a while, but I'm issuing a call to action. For the longest time, trying to determine Federal Electric's serial numbering has confounded me, especially when trying to determine what period a siren was built. Not much information is currently known outside of vague unconfirmed speculations.
If anyone has information or, preferably, photos of Federal Electric tags (specifically anything larger than a Type Mach. 1, so no A's, D's, etc. That would be nice in the future however), as well as any information about the installation date and where it came from, please post in this thread. As entries pile up, I would like to create a spreadsheet similar to those for Thunderbolt sirens. If we can do it for those, then we sure can here too!