Celestron eyepiece, 40mm, classic Kellner made in Japan. Very good condition with clear glass and only light marks on barrel, some small dust motes from normal use, but minimal.
In the 60's and 70's Japan made fine eyepieces that are still highly regarded today. This one is an excellent example of Japanese quality.
Marking on barrel is Circle "M", indicating manufacture by Mizar Optical Company. These are fairly rare and highly prized.
Excellent views and Japanese quality.
Free shipping to CONUS.
Filed under: Eyepieces & Accessories