I am pretty sure you can strainen the faults a little and then solder the ends together .. I would keep it clean it a little out as a "conversation piece". Or at least remove the fittings.
No story that I know of, the boyscouts had done some cleaning at their cabin, so there might be some info if there was an incident.
"For sale, vintage lantern with original patina. One of a kind, antique. Lightly used, could be returned to working order with some TLC."