Wood wall telephone, who is the maker?

[Witty]

I saw this wall telephone listed in an online auction and was curious if anyone might know what brand it is based on the pictures?
The listing only gives the dimensions, and says it rings when the crank is turned. Nothing more.
I've provided the only 3 pictures shown in the listing.
Note the internal bells with a sound vent on both sides.

[rdelius]

This was built by a refurbisher poss Suttle or TR&S. Arm and tx are Stromburg. Ringer, condenser and switch poss Leich