Vintage 1930s Hanau dental blowtorch, black bakelite dentist tool w/ US patent 1755216

1930s vintage dental blow torch patented by Rudolph Hanau and manufactured by Hanau Engineering Company. The body is black bakelite and it stands about 7 1/4" tall.

There are no cracks or chips to the bakelite, but there is tarnish to the metal fittings and a crack to the rubber ring at the base.