Donegan OptiVISOR DA-4 2X Magnification at 10" Rhodium One face is very sharp

One face is very sharp and the other slightly less so

Its investment table is a generous 11" x 11" in size

Auto degassing

Half Round: (2

Donegan OptiVISOR DA-4 2X Magnification at 10" Rhodium One face is very sharpThe Genuine Donegan OptiVISOR is a precision binocular headband magnifier that permits unrestricted user efficiency while reducing eye strain. It leaves both hands free and allows three dimensional vision. Used by anyone whose profession or craft requires close accurate work. Can be worn over prescription or safety eyeglasses. DA 4 gives 2 X magnification and focuses at 10" This is the original OptiVISOR proudly made by Donegan Optical Ltd right here