The Moorhead VT-32 with a clear envelope.
Thanks to Joe Gruber for sending the images.
The wide glass tube envelope is mm in diameter and, excluding the B4 base pins, is mm tall.
Reference: Joe Gruber. Type VT-32(M) was first introduced in 1917.
Updated June 13, 2020. shape:wide.glass.tube construction:pinch type:triode age:pre.1920 base:b4 pins:4 pin:1.a pin:2.g1 pin:3.f pin:4.f