Iron, kerosene lamp w/attached (soldered) wall hanging plate.
"CORNELIUS & CO./PHILAD/PATENT/APRIL 1ST 18?3" stamped in hanging plate; two holes for hanging.
Round, vented, kerosene font & oblong reservoir.
Two screws @ top sides of font to hold chimney (missing).
Round wick opening.
Residue of fuel still in font/reservoir.