Cool drum. It's definitely designed for orchestral standup playing with those exposed bearing edges! And that throwoff looks like a blade switch from an old Frankenstein movie! LOL!
The rims are aluminum, I take it (?) Aluminum was really a "space age" metal back then. Up until the time someone figured a way to extract aluminum from ore, it had been considered "exotic". I think it was in the 20's or 30's when they figured it out and literally everything was being made from aluminum after that! I see many drums and instruments from that era incorporating aluminum components.
Bake-a-lite grommet = nice!
Stromberg also made some nice archtop guitars. My friend who collects old guitars says that the "holy grail" of guitars is the Stromberg Master 400 with a cutaway on the lower bout.
Apparently there were some real craftsmen working at Stromberg back in the day.
Thanks for sharing the pictures!