Unspecified / mid 19th century
Microscope
The Smithsonian catalogs Microscope as microscope in its Science & Scientific Instruments records.
This is a small drum microscope with push-pull focus, and sub-stage mirror in a cylindrical base. This was owned by Richard Halsted Ward (1837-1917), a noted medical microscopist, or his son, Henry B. Ward, a pioneering parasitologist.
A CLOSER LOOK
The Smithsonian lists the object under Science & Scientific Instruments and dates it mid 19th century.
This is a small drum microscope with push-pull focus, and sub-stage mirror in a cylindrical base. This was owned by Richard Halsted Ward (1837-1917), a noted medical microscopist, or his son, Henry B. Ward, a pioneering parasitologist.
FOLLOW THE EVIDENCE
Smithsonian InstitutionMicroscopeOriginal explanation based on the sources above. Images carry their own reuse terms.