This Bausch & Lomb model LC is a compound monocular designed for petrographic work. It has coarse and fine focus, inclination joint with locking handle of celluloid, triple nosepiece (one missing in this example), large circular stage with vulcanite top, adjustable mirror bar, and Nicol prisms for polarizer and analyzer. The inscription on the black horseshoe base reads “Bausch & Lomb Optical Co. / ROCHESTER, N.Y.” The 47930 serial number on the back of the base suggests a date around 1904.
Ref: Bausch & Lomb, Microscopes and Accessory Apparatus (Rochester, N.Y., 1904), pp. 42-43.
Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.
If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.