Antique Victorian hand blown glass and brass door knob, c. 1880's

Antique Victorian hand blown glass and brass door knob, c. 1880's. This was taken from the Lewellen House (not on the historical registry, but built in 1870) located on my family's estate during the renovation. There is a chip (see pic) due to wear and tear. There is also an air bubble due to it being hand blown. Please see my other listing for another "pair."