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Beno Gutenberg with seismograph
Hertha Gutenberg seated with a book
Beno Gutenberg in the field
Hertha Gutenberg holding a book
Beno Gutenberg, casual pose
Beno Gutenberg, formal pose, head and shoulders
Beno Gutenberg, casual pose
Beno Gutenberg, casual pose
Beno Gutenberg at work
Beno Gutenberg, casual pose
Beno Gutenberg, casual pose
Beno Gutenberg, casual pose
Beno Gutenberg, casual pose
Beno Gutenberg, casual pose