Nikon Nikkor-M 105mm f/3.5 normal lens in Copal #0 shutter. Serial #810592. Made in Japan. Covers up to 6x9cm or 2 1/4 x  3 1/4". Image circle is 110mm at f/22. Angle of coverage is 55* at f/22.. This lens is very compact and will cover up to 6x9cm size film format. Shutter speed range is 1/500 - 1 second, B and T. Front filter diameter is 40.5mm. Weight is 170g or 6 oz. Lens is only 1.4 inches or 35.5mm long. Lens f/stop range is f/3.5- f/45. Multicoated glass. Lens is in Mint or 9.8 of 10 cosmetic condition. No dents or dings. Clean glass. Clean multi coating. No separation or scratches. Good working shutter. Smooth and clean shutter and aperture blades. Original retaining ring. Will work on 6x9cm medium format field and view cameras, like: 6x9cm Cambo, Arca-Swiss, Linhof, and others that are 2 1/4 x 3 1/4 size cameras. Great compact "normal" lens for your 6x9cm mefium format camera. Excellent for landscapes. Original retaining ring and caps. Sells with NO RESERVE at a price of $375. I have more Larger Format cameras, lenses and accessories, Kodak Ektar lenses, Portrait and Soft Focus Lenses. More great buys on my other auctions, Ebay Store and Web Page.