$18 · Magnifier on Stand/Linen Tester.

Vintage Bausch and Lomb "Linen Tester" magnifier 81-31-49 N8869 The product is called a "Linen Tester" which is a strong magnifier with a measuring scale and a built-in stand. Folds into compact container. Historically they were, and still are, used to check the quality of woven fabrics (hence the name). They are also used for small detailed embroidery, jewelry, art projects, reading very fine print, etc. . Power: 5x . Lens diameter: 1" . Focal distance: 2" . Rigid plastic case In very good condition, with box