* Unforgotten heroism* Unforgotten heroism. The colonization work of the German Schutztruppe and Marine. A memorial book Zur Zwischenablage hinzufügen 10/1555 Akt(e) 1924 Teil vonGerman Historical Museum Foundation In: German Historical Museum Foundation Kolonialwarte (Agencia Duems) Berlin
Maneuver of the Marine Field Department, Tsingtau Zur Zwischenablage hinzufügen F 67/1262 Akt(e) 1910 Teil vonGerman Historical Museum Foundation In: German Historical Museum Foundation