Made in USA 1.75x Magnification, Optical Glass, Rectangular Magnifier - Headband Mount, 14 Inch Focal Distance | Part #DA-3
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OptiVisor Optical Glass Binocular Magnifier 1.75x
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Donegan Optical OptiVISOR Magnifying Headband Visor with 1-3/4X at 14" Lens Plate SKU - 441379