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Hertha Gutenberg seated with a book
Hertha Gutenberg holding a book
Beno Gutenberg pointing to record on seismograph
Beno Gutenberg, formal pose, head and shoulders
Beno Gutenberg with F. Press, H. Benioff, C. Richter
Beno Gutenberg, casual pose
Beno Gutenberg at work
Beno Gutenberg, casual pose
Beno Gutenberg, casual pose
Beno Gutenberg, casual pose