1 7/8'' Student Lamp Chimney, traditional design, 1 7/8'' x 10 1/2''
borosilicate glass!
This chimney is virtually identical to the chimney
on my Wild & Wessel ''Harvard'' Student Lamp chimney.
The W&W "Harvard'' patent of June, 1879 did not
include a patent for the chimney as this chimney
had been in use on Kleeman and other student lamps
for almost two decades by 1879.
Fits most student lamps such as Manhattan, Kleeman