Hello here we have a Leica  Ernst  Leitz  Wetzlar  Elmar  90cm  F4  Screw  Type  Lens  which has its Original Lens Keeper i would describe this lens as in Full Working Order and a Very Good User -- the F Stops are nice and Firm and have a  Smooth Action -- there are signs of use on the lens and the Glass is in very good condition with No Fungus and there is the Original Lens Keeper to put the lens into -- Also there is a Lecia Camera View Finder to use with this lens which fits onto the Camera's Top Shoe so you can use this 90mm Screw Type Lens Straightaway on your Camera -- i would describe this Viewfinder as follows you can use 35mm - 50mm - 73mm - 90mm - 105mm and 135mm lenses with this viewfinder -- it is in Full Working Order -- it has Good Clear Glass --  it looks Tatty in the Photo's but when it is fitted to the Camera it looks so much better and is ok -- I  WILL  POST  WORLDWIDE  --  PAYMENT  BY  PAY  PAL  ONLY  PLEASE. ------  Also you can use this Lens on a  Leica  M  Type  Camera  Body if you fit an Baynet Type  Adaptor  they can be bought Cheaply on Ebay  they are made in Japan and China.