P&a Risdon Gimballed Brass Oil

P&A (PLUME & ATWOOD) RISDON pivoting/Swaying brass plated steel boat oil lamp. the bottom base looks to be replaced given much newer look than the rest.this can be wall mounted or table standing. Has patina on the plating. No dents There’s is an Eagle burner with wick. That may be original being factory was flooded out In the mid 50’s and went to using eagle burners on their Lamps. Some ,including this one had the eagle wick turn Wheel replaced with P&A co. Wheel. It is a swaying type that has both brass knurled knobs Present. It has separate small inner cylinder font for oil. 18” to top of chimney