S3D Re: FS: Keystone Visual Survey Telebinocular, model 46B

["Dr. George A. Themelis" <DrT-3d@xxxxxxx>]

I had a lot of interest for this item which was posted for
sale a month ago... but the person who first confirmed the 
sale has failed to follow up with payment.  So I am putting 
it up for sale again.  Unfortunately, because of the size I 
cannot ship this outside the USA.  

Thank you for your interest.  

-- George Themelis

===

How would you like to own one of the best stereoscopes ever 
made?  Here is your chance.  It is the Keystone Visual Survey
Telebinocular, model 46B.  It has all the features of the
more common 46C model:

- ACHROMATIC LENSES 
- Wide viewing area (to fit eye-glass wearers) 
- Forehead Support 
- Adjustable Height 
- Illumination (via a Tubular frosted bulb- included) 
- Focusing (by moving the card holder back and forth) 

Plus the following unique features (unique in model 46B - 
I have only seen one model 46B in my life... this one!):

- Second light bulb between the lenses with an extra switch 
  on the side 
- Metal holders (perhaps to block one eyepiece at a time) 
  next to the lenses 
- Extra adjustment for the tilt of the headpiece 
- Back mask flips open to reveal a wider mask 
- Fancy metal (the 46C is plastic) stereo view holder 
  graduated in diopters (focusing can also be locked between 
  two extremes) & scale for measurement of convergence 

You can see my pictures and comments here:

http://home.att.net/~drt-3d/toys/KeystoneVS/sale.htm

To read more about these fascinating instruments, click here:

http://home.att.net/~drt-3d/toys/KeystoneVS/index.htm

That should explain why I like these instruments and why
I think they are the best stereoscopes ever made!

Asking $375 firm, plus shipping (from $10 to $35, depending 
on shipping method and destination in the USA)

George Themelis
mailto:DrT-3d@xxxxxxx