so a little over a year ago i had bought myself a truck. Behind the bumper this air raid siren was wired up but no longer functional. when i purchased the truck the guy had asked me to take it out when i had time and return it to him, claiming it belonged to his grandfather from the war(air warden?). anyways long story short the truck was a lemon and he was a j*****s so i sold it and kept the siren.

Im curious if it really is a war time piece and if anyone has any info on it. I cannot find any markings on it but it does have an aged patina to it so definatly not new.
ny info is appreciated.

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