Vintage Geneva Optical Company Skiascope Eye Instrument. Fisher, Md, Chicago I haven't seen one of these instruments before and I can only assume they are somewhat rare. The front has an "iris" device that controls the amount of light entering the piece. OPTOMETRY JOKE: Did you hear about the optometrist that fell into his lens-grinding machine? He made a spectacle of himself.
This item is in the category "Antiques\Science & Medicine (Pre-1930)\Optical". The seller is "texstar2000" and is located in this country: US. This item can be shipped to United States.