So I just supposedly received a (Federal Electric Model A) from Ebay, but when it arrived I looked at the tag only to find it reading (Edwards Incorporated Model 315) If anyone can give me a history talk about this thing and where it came from that would be most appreciated.
P.S I'm Having some trouble getting the screws off the siren because they rusted a long time ago and then just painted over so that's just A another thing I need help with.