2 1/2 inch fitter 12 inch tall Round ( slim) Bulge Oil Lamp Chimney
2 1/2 inch fitter 12 inch tall Round ( slim) Bulge Oil Lamp Chimney
2 1/2 inch fitter 12 inch tall 3 1/2 inch Round ( slim) bulged oil lamp chimney fits British Duplex Lamp Burners, also fits some pre 1900 American parlor Lamps with smaller 8 or 9 inch ball shades where a slimmer bulge is required to pass thru the openings.