Yes, it's a measuring eyepiece for a microscope. We've got one in our lab.
The large aluminum knob is the micrometer, which moves a cross-hairs in the
eyepiece.
Mark Marr-Lyon
Jerry Liles wrote:
> Hans van Veluwen wrote:
> >
> > : http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1219940047
> >
> > : Is it the Manual Photomicrographic System PM-10M?
>
>
> I believe it is an eypiece or ocular micrometer used for measuring
> whatever you can get on the microscopes stage. Very useful in industry
> and geology and occasionally in clinical practice.
>
> Jerry Liles
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