Crookes tube
Sold
Crookes tube, The Crookes mill tube (Crookes no 17) This tube has several names, in German wasserrad röhre or mühl röhre which means water mill tube or mill tube, in English sometimes paddle wheel tube. The wheel will turn clock or counterclockwise depending on the magnet poles which deflects the electron beam to the vanes.
Sold to museum Société Française de Radiologie in Paris. https://www.radiologie.fr/musee-radiologie .
