A friend is getting rid of a whole bunch of mixed stuff (hence the few pics i am posting up on this forum). Is the eye piece pictured a gemological instrument ? If so what would it be used for, how is it used and what would be a fair price to offer if i wanted to buy it ?
This is a piece for a stereo camera. I am not sure what but it probably has no gemological use. However check to see whether or not the lenses are polarizers. They probably are not.
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