This switchboard operator’s desk telephone was manufactured by Siemens-Halske in Germany. It is believe the history of this specific device was removed from one of the U.S. Missions in Germany. A close inspection of the typed labels for the switches are in German.
The telephone was called “REIPOS”. The bulk of the unit is made from Bakelite, a popular material used in the manufacture of early telecommunications equipment. It has 4 incoming lines and 10 outgoing lines. It would have very likely been located at the embassy or consulates operators room.