Boat Emergency Strobe, I think (Newport News, Bruton Ave)

Got this a year or two ago when I cleared out a man's self storage locker. He was into boating, so I assume this is an emergency strobe light. MAYBE it activates when it's upright, floating in the water. The yellow conical end is weighted, and unscrews. Looks like an odd size battery about an inch in diameter is connected. No idea of voltage. The top light MIGHT spin as it strobes, not sure. Untested. Shell is thick aluminum, so I'll bet it was pricey back in the day. Can't find any writing anywhere on it. Can leave on porch on Bruton Ave in Newport News, a block and a half east of Harpersville. -paul

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