[Dentistry] Lot of 13 brochures and trading catalogues

Early 20th century, in German and Dutch, (nicely) illustrated, orig. covers. Some names: Philips, Solila, Siemens-Reiniger-Veifa, H. Drijfhout & zoon, Original Hanau and Diaphor.

Interesting and voluminous lot. Includes different publications concerning x-ray devices and "Ultraviolett-Therapie".