Clemens Pirquet (1874–1929), Kinderheilkunde, um 1920
Courtesy: Austrian National Library, Picture Archives
Originator: Atelier Brühlmeyer
©
CC BY-NC-ND 4.0
Signatur: Pf 10.224 : D (1)20th Cent.
https://digital.onb.ac.at/rep/osd/?BAG_12542292
- photography