"Piers & wharves Germany Hamburg 1910-1920." . . . . . . "Der 250-Tonnen-Hammerwippkran der Werft von Blohm & Voss in Hamburg, erbaut im Jahre 1913" . "Engineering drawings" . . . "Photograph albums" . . . . "Photographic prints" . . . . "Hoisting machinery Sweden 1910-1920." . . "Hoisting machinery Germany 1910-1920." . .