Dies müsste die Therapie-Röntgenröhre No.20 sein, die in der Preisliste 1913 gezeigt wird. Hier ausgestattet mit Osmose-Regulator, der bei der Vitrinen-Röhre allerdings quer angeordnet ist.
The textual information presented here is free for non-commercial usage if the source is named. (Creative Commons Lizenz 3.0, by-nc-sa) Please name as source not only the internet representation but also the name of the museum.Rights for the images are shown below the large images (which are accessible by clicking on the smaller images). If nothing different is mentioned there the same regulation as for textual information applies.Any commercial usage of text or image demands communication with the museum.