Donegan Optical OptiVISOR Magnifying Headband Visor 2-3/4X at 6 Lens

OptiVISOR is a precision binocular headband magnifier, which leaves both hands free and allows three-dimensional vision. Lenses are optical glass that

Headband Magnifiers Archives - Donegan Optical Company, Inc.

Donegan%20OptiVisor%20Binocular%20Magnifiers%2C%202-3%2F4x%20%40%206%22%20-%20DA-700%20%20Optical%20Glass%20Prismatic%20Lenses-Ground%20and%20polished

Donegan OptiVisor Binocular Magnifiers, 2-3/4x @ 6 - DA-700

Donegan-Optical OptiSIGHT Magnifying Visor #osc-tan

Optivisor LX Magnifier Hands Free Headband for Jewelers and Watchmakers - Watch Battery Tools

DONEGAN OPTIVISOR PROFESSIONAL BINOCULAR SET - GRIFFEN'S CLOCK PARTS AND SUPPLIES LLC

Donegan DA-10 OptiVisor Headband Magnifier, 3.5x - by GEMWORLD online store

This OptiVisor set comes with four lenses for a complete focal range of 6 to 14 making it a great value! 1.75 to 2.75 times magnification, true

Optivisor AL Set Magnifier Headband with 4 Lenses

Donegan DA-2 OptiVISOR Magnifier

Donegan-Optical Optivisor w/Lens Plate #3