Hi, it looks like a standalone version of the goniometer head fitted to many
measuring or toolmakers microscopes. There should be some way of rotating the
cross hair and reading off the resulting angle, often to 1/60th of a degree if a
vernier scale is present. It can be used for checking the angle of threads (55
degrees vs. 60 degrees for imperial and metric/UNF/UNC respectively).

Andrew.

--- In Microscope@yahoogroups.com, "stephen d yahn" <yahns@...> wrote:
>
> My first thought at seeing it was for something for movie film negatives or
prints. And also viewing photo prints of spectrographic photography, Fraunhofer
lines etc. I'm only making guesses. Steve Yahn
>
>
>
> --- In Microscope@yahoogroups.com, "reynaldguru" <carra@> wrote:
> >
> > Hi to All
> > I am from Western Australia, in the great South Western part of it, I have a
great interest in Microscopy, in the sense that I help testing pet birds for
illnesses, I use a Vickers M70 an old friend, a bit long in the teeth, its a
binocular compound microscope, I modified it by changing the light system with a
LED one, a simple task, just replace it with the innards of a 9 LED torch,
amazing but I hhave had ne problems with it and it work a charm, I use mainly
400X for my samples.lately I have acquired an odd ball microscope, the price was
very low and I took a punt...
> > it is a Carl Zeiss, but it is very odd, please see my pictures in the photos
under Mysterious Carl Zeiss Microscope.when turned on it shows a green colored
cross hair and a semi circular scale in degrees from 0 to 180, upon focusing the
only thing I get is a small circle of very white dots smack in the center of the
cross hair.it has no stage, there are 3 little spike on a bar who can be moved
forward, as I say, a most peculiar bit of equipment, couldn't find anything on
the net either.
> > If anyone has an idea , please help me,My brain is crunching trying to
figure out what it is...
> > Have a great day
> > regards
> > Reynald
> >
>