Bausch & Lomb Microscope Value Guide

This early 20th-century Bausch & Lomb microscope represents a pinnacle of American scientific manufacturing from Rochester, New York. Highly collectible for its robust cast iron base and polished brass components, these instruments were essential tools in global research and education between 1900 and 1920.

What Is Bausch & Lomb Microscope Worth?

The typical price range for Bausch & Lomb Microscope is $300 - $500 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• The presence of original brass objectives and eyepieces significantly increases the market value.
• Condition of the lacquer finish on the brass; original, unpolished patina is often preferred by serious scientific collectors.
• Functional integrity of the rack-and-pinion focusing mechanism and the clarity of the original glass optics.
• Inclusion of the original fitted wooden carrying case and any period-correct accessories like glass slides or additional lenses.

How to Identify Bausch & Lomb Microscope?

• Look for the 'Bausch & Lomb Optical Co.' engraving typically located on the tube or the rear of the horseshoe base.
• Verify the presence of the original triple or double nosepiece and the characteristic heavy black-enameled cast iron base.
• Check for a serial number engraved on the brass body, which can be used to date the instrument specifically to the 1900-1920 era.
• Examine the stage and sub-stage condenser for the signature mechanical craftsmanship unique to Bausch & Lomb's early 20th-century designs.

History of Bausch & Lomb Microscope

Bausch & Lomb, founded in 1853 in Rochester, New York, began as a small optical shop. By the late 19th and early 20th centuries, it had become a leading manufacturer of microscopes, lenses, and other optical instruments, playing a crucial role in scientific research and education worldwide. Their microscopes were known for their robust construction and optical precision, serving countless scientists and students.