Binocular microscope with a “SPENCER / BUFFALO / USA” inscription, probably used by Burnett Stilwell (1896-1983), a milk inspector with the New York City Dept. of Health.
The Falling Drop Densiometer was designed “for determining Blood Proteins and Specific Gravity of Body Fluids.” An inscription on this example reads “LAMOTTE CHEMICAL PRODUCTS CO / BALTIMORE, MARYLAND.”