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I don't know if I've posted this old beautiful boat navigation light before, but @jim hardy knew exactly what it was when he saw it as he loved boats. e.g.
https://www.physicsforums.com/attachments/bogityshoop_zps7b23f4c3-jpg.168946/
It uses either an incandescent bulb or a kerosene lamp to light it:
https://www.physicsforums.com/attachments/bogityshoop_zps7b23f4c3-jpg.168946/
It uses either an incandescent bulb or a kerosene lamp to light it: