I see them now! the one with Cole looks to be a RCA and the one with Shank looks to be the coke bottle *Altec* FYI-The RCA is a ribbon and the Altec is a tube omni.
I m not sure why Altec went with that shape - Both DPA and Earthworks have similar body shapes.
The only reason I can think of for the body shape of the Altec is that the small omni capsule only needs a small frame to hold it in place and the body needs to be bigger to hold the electronics and the tube housing.
Just 50's deco art type stuff.