Jason the Featherweight came out when the 20 ga did in 1907.
I have a 1928 Ideal Grade, ejectors and had a Hunter One Trigger but someone back then was smart enough to put a Millers One Trigger in it's place. An early one with the selector on the safety, forward, right barrel, back ward, left barrel. A much better design, how could you ever select the barrel on a Hunter set up with the gun mounted?

David