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Amazon.com: 6X Metal Linen Tester- 1"x 1" Opening with 1 inch Diameter Double Glass Lens, with Case : Health & Household
Linen tester | Special magnifiers (linen testers and measuring lenses) | Magnifiers | Optical Instruments and Lamps | Labware | Carl Roth - International
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Peak 2003 Linen Tester SA0 Series : Peak Optics, Magnifiers, Comparators, Loupes, For Inspection & Measuring, 2x to 300x
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