WS-1000 Was a Series of Speaker Sirens by Whelen Engineering Possibly Made around the 1970s.. Mounts/Masts Commonly had 4-6 Speakers on a Single Area..
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WS-1000 Was a Series of Speaker Sirens by Whelen Engineering Possibly Made around the 1970s.. Mounts/Masts Commonly had 4-6 Speakers on a Single Area..