Koch, Robert, - 27. , German physician, working, wood engraving, 1st half 20th century,

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Photo credit: © INTERFOTO / Personalities / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1900s, 19th, bacteriologist, century, engraving, german, germany, imperial, koch, laboratory, male, man, medic, medicine, men, microbiologist, microscope, people, physician, robert, science, scientist, wood, working