- This is a wide field binocular dissecting instrument with very short tubes with Porro prisms, rack-and-pinion focus, square stage, and wooden box. The inscription on the eyepiece reads “BAUSCH & LOMB OPTICAL CO. / Rochester, N.Y. U.S.A. / 205170.” The triple drum nosepiece is inscribed with the B&L logo and “PAT. 3.1.1927.” The single nosepiece is inscribed “B. & L. O. CO.” The firm introduced the basic form in 1925. The serial number on this example indicates a date of around 1929.
- Ref: Bausch & Lomb ad in Transactions of the American Microscopical Society 44 (April 1925): iii.
- Bausch & Lomb, Microscopes, Microtomes, Colorimeters, Optical Measuring Instruments and Accessories (Rochester, N.Y., 1926), pp. 54-57.
- Currently not on view
- Object Name
- date made
- ca 1930
- place made
- United States: New York, Rochester
- Physical Description
- glass (microscope material)
- metal (microscope material)
- wood (case material)
- microscope: 21.1 cm x 10.5 cm x 15.4 cm; 8 5/16 in x 4 1/8 in x 6 1/16 in
- case: 27.6 cm x 18.6 cm x 17.7 cm; 10 7/8 in x 7 5/16 in x 6 15/16 in
- ID Number
- catalog number
- accession number
- serial number
- Credit Line
- Department of Entomology, National Museum of Natural History, Smithsonian Institution
- Science & Scientific Instruments
- Data Source
- National Museum of American History
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