Folding Magnifying Glass Value Guide

This 1920-1940 American folding magnifying glass is a testament to the era's dedication to detailed observation, serving as a vital tool for jewelers and naturalists. Its compact design features a protective leather holder that allowed professionals to carry high-quality optics safely in their pockets.

What Is Folding Magnifying Glass Worth?

The typical price range for Folding Magnifying Glass is $40 - $70 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• The clarity and magnification power of the original glass lens, free from deep scratches or chips.
• The condition of the leather holder, specifically looking for suppleness versus dry rot or cracking.
• The patina of the brass hardware, where original aged finishes are often preferred over modern polishing.
• The presence of any manufacturer stamps or 'Made in USA' markings which confirm its 1920-1940 origin.

How to Identify Folding Magnifying Glass?

• Verify the presence of a genuine leather protective holder designed to encase the lens when folded.
• Check for a brass frame around the glass lens, characteristic of United States manufacturing from the 1920-1940 era.
• Examine the pivot point for a sturdy metal rivet that allows the magnifying glass to swing smoothly into the leather sleeve.
• Look for signs of hand-stitched or period-correct machine stitching along the edges of the leather casing.

History of Folding Magnifying Glass

Pocket magnifiers like this one gained popularity from the late 19th century through the mid-20th century, serving as essential tools for professionals and hobbyists alike. They were often carried by collectors, jewelers, and naturalists for close inspection of small details, reflecting a time when detailed observation was a valued skill. The design prioritizes both functionality and portability, allowing the lens to be protected when not in use.