Dampfschiff Imperator, HAPAG, Größter Dampfer der Welt | xl
Internationales Maritimes Museum Hamburg - The SS Imperator, Albert Ballin's giant (part II): The Imperator had made his maiden voyage in June 1913 but, because the stability problem that had been noticed
Der „Imperator“ aus Hamburg: Deutschlands Antwort auf die „Titanic“ | MOPO