Germany: Hesse, Wetzlar / ca 1903
Microscope
The Smithsonian catalogs Microscope as microscope in its Science & Scientific Instruments records.
Simon Flexner (1863-1946), a noted physician, scientist, and scientific administrator, used this microscope at the Rockefeller Institute for Medical Research in New York, an organization of which he served, for many years, as the founding director.
A CLOSER LOOK
The Smithsonian lists the object under Science & Scientific Instruments and dates it ca 1903.
Simon Flexner (1863-1946), a noted physician, scientist, and scientific administrator, used this microscope at the Rockefeller Institute for Medical Research in New York, an organization of which he served, for many years, as the founding director.
FOLLOW THE EVIDENCE
Smithsonian InstitutionMicroscopeOriginal explanation based on the sources above. Images carry their own reuse terms.