<P> Purchased by myself as a Optical resale item because it was a    Usable     ITEM: Nippon Kogaku TOKYO Japan N>F rotating Tube 
MECHANICALLY: In used 8++ condition,  N-F tube used to adapt the old rangefinder telephotos (180/2.5, 250/4, 350/4.5, 500/5, 1000/6.3 reflex) to the F-bayonet mount. The N-F tube provided the appropriate amount of extension required to focus these lenses to infinity (as they'd been designed for the rangefinders' reflex housing). 

OPTICALLY: made in Nippon Kogaku TOKYO stamped. makes this a first issue tube during the Nikon  SP rangefinder series.
Lens & Body  Beauty: 89% original condition! Normal wear for  57 years old photo object that was used.... I am one of  the most scientific analyzer's  of camera & lens conditions on eBay. My background is high science in electronics, optics and mechanism's.  Beware many sellers on eBay, they have very low standards of TRUTH or knowledge and sell as-is!   USE:  Super collector who wants the very best;  or Rare examples,  they can find on ebay once in a great while, this is it!
NOTE:  

  Feedback UPDATE:  I leave professional positive feedback only and work out any and all problems if they happen. Please contact me  FIRST with any problems in Shipping or Content, use ebay message system, I have a Question !!!!!. Optical devices are shipped priority mail USA & Worldwide.

Enjoy,   Don

  <P>   sale terms & shipping & Handling terms for:  Optical devices , bubble wrapped or peanuts and boxed. 
P><P>Questions, just ask me,,,,,,,,,,,,,,,,,,,No SALES to Zero rated Buyers unless you contact me first, YOUR BID will be cancelled by me, unless you contact me before bidding, and agree to pay on Paypal.com, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Enjoy, Don

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