Walhalla (1896) by Max Brückner - PICRYL - Public Domain Media
Allgemeine Bibliographie – Max von Oppenheim Stiftung
ANE TODAY – 202009 – Max von Oppenheim and His Tell Halaf
Die Steinbilder des Tell Halaf-Museums – Rettung einer Sammlung
ANE TODAY – 202009 – Max von Oppenheim and His Tell Halaf
Max von Oppenheim NGS -roman-bridge-714 - PICRYL - Public Domain
Max von Poosch Heimkehr 1923 dgE - PICRYL - Public Domain Media
17 Tell halaf, Syria Images: PICRYL - Public Domain Media Search
ANE TODAY – 202009 – Max von Oppenheim and His Tell Halaf
The Photographic Collection – Max von Oppenheim Stiftung