Bausch & Lomb Pocket Magnifier Value Guide

This Bausch & Lomb pocket magnifier represents the height of early 20th-century American optical craftsmanship from Rochester, New York. Highly collectible for its durable nickel-plated brass swing-out design, it was once a staple tool for professional jewelers and naturalists.

What affects the value of Bausch & Lomb Pocket Magnifier?

• Condition of the nickel plating, with higher value for pieces lacking significant brassing or pitting.
• Clarity of the glass lens, as scratches or chips significantly reduce the $45-$50 market price.
• Smoothness of the swing-out hinge mechanism and the tightness of the rivet.
• Presence of original patina versus over-polishing which can detract from the 1910-1940 era authenticity.

How to Identify Bausch & Lomb Pocket Magnifier?

• Look for the 'Bausch & Lomb' brand name stamped directly into the nickel-plated brass frame.
• Verify the swing-out mechanism is constructed from nickel-plated brass rather than modern polished steel.
• Check for the characteristic circular glass lens which should be free of modern plastic coatings.
• Confirm the folding design allows the lens to tuck completely into the protective metal housing.

History of Bausch & Lomb Pocket Magnifier

Bausch & Lomb began as a small optical shop in Rochester, New York, in 1853. By the early 20th century, they became the premier American manufacturer of precision optical instruments. Folding magnifiers like this one were indispensable tools for naturalists, philatelists, and jewelers, designed to be durable enough for field use while providing high-quality magnification.