Octocontrabass Sax.
Somewhat large.
Somewhat low.
made in 1929 by "Conn" and displayed at their San Fransisco store.
36 feet tall
600 pounds in weight.
the tiny-looking bloke next to the saxophoneal answer to Godzilla is playing a "mezzo-soprano sax in F". Conn made lots of saxes in a plethora of keys. Switch instruments and always have a C major key sig - sounds good!