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Unitron Duetron Double Eyepiece Holder -- Reduced Again -- now $100.00!

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For Sale is a real oddity -- a Unitron Duetron Double Eyepiece Holder, a two-viewer visual diagonal of sorts.  It is in fair-good shape -- that is, it is optically a bit dusty (not bad) and mechanically excellent (smooth and tight), but does not include the nice wood box I've seen while trolling the internet to learn about this rare item!  It was included in a estate sale and is a real find!  

The photos show everything that is included.  It is Model A for Unitrons or Polarexes, not for the 1 1/4-inch eyepieces.  I have a link to a 1972 catalog that shows it "in use," and have incuded a photo from that catalog as well.  

I now remember catalog shots from my youth that showed father and son simultaneously viewing through the business end of a fine Unitron refractor!  My offered unit does not include the clamp pictured in the diagram.  

If you disagree with the price listed (it does seem quite fair) please make an offer!  Reduced -- now $100.00