Siemens-Reiniger-Veifa Coolidge Type Therapy Tube

Ref. C2

This is an oval bulb, light anode Radiotherapy Coolidge type tube 32” (80 cm) long with a six-inch (15 cm) bulb diameter. Dating probably to the late twenties, or early thirties, it has a Tungsten target. 

The no. 59920, Type II is working 185 KV and 4 Ma and was made by AEG for Siemens-Reiniger-Veifa.

Note the absence of the vacuum glass nozzle on the tube bulb, compared to earlier tubes.