This exhibit is an Electrad Diode fitted into a base also made by Electrad. This is a soft diode and thus is not gettered.
Electrad Corporation of America made midget valves in 1923 and were based in New York
We also have the un-gettered soft version here.
The original box.
Thanks to Joe Gruber for sending the images.
The thin glass tube envelope is 19 mm in diameter and, including the base pins, is 83 mm tall.
Reference: Joe Gruber.
Updated November 26, 2020. shape:thin.glass.tube construction:pinch type:diode age:pre.1920 base: pin: