Optical Vintage 1928 Patent Pending Nu-Way Co Optometry Eye Exam Testing Tool

Description

NU-WAY OPTICAL TESTING TOOL
THIS WAS IN MY PARENTS BELONGINGS WHEN THEY PASSED.  I AM NOT SURE WHAT IT IS EXCEPT IT HAS SOMETHING TO DO WITH OPTICAL TESTING.
IT SAYS "PROPERTY OF NU-WAY OPTICAL CO. CHICAGO,ILL 1928 PATENT PENDING" ON THE ITEM. IT IS IN EXCELLENT CONDITION WITH VERY LITTLE SIGNS OF WEAR.
I WOULD APPRECIATE ANY INFORMATION SOMEONE MAY HAVE ON THIS ITEM.
NO INTERNATIONAL SHIPPING NOR NO RETURNS ON THIS ITEM ONLY. THANK YOU FOR LOOKING
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