BUY IT NOW, UP FOR SALE IS ANOTHER BRAND NEW APO GERMINAR W 240/8, THIS ONE IS NUMBER 1688. NEW STOCK FROM SPARE PARTS INVENTORY OF LARGE CORPORATION, LENS HAS SCRATCH FREE OPTICS, NO HAZE, NO FUNGUS, OIL FREE APERTURE, NO EXPENSE WAS SPARED IN THE CREATION OF THIS STUNNING LENS FROM CARL ZEISS JENA, IRON CURTAIN OPTICS AT THEIR BEST, ONE OF THE SHARPEST LENSES  EVER CREATED. UNIQUE 8 ELEMENT DESIGN,  8 ELEMENTS IN 8 GROUPS. MY RESEARCH INDICATES THAT ONLY 810 OF THESE LENSES WERE EVER PRODUCED. COME WITH CENTER FILTER. SCHNEIDER CENTER FILTERS OF SIMILAR SIZE RETAIL FOR OVER $1000, COMES WITH FRONT AND REAR CAPS. ALSO COMES WITH LOCK RING. LOCK RING IS A LITTLE STIFF TO UNSCREW AND REMOVE BUT IS FULLY FUNCTIONAL. FILTER THREADS HAVE BEEN BUMPED AND ARE A LITTLE OUT OF ROUND BUT FILTER STILL SCREWS ON. PHOTOS  ARE OF ACTUAL ITEM FOR SALE. PLEASE ASK QUESTIONS AND REVIEW PHOTOS BEFORE PURCHASE, I AM NOT ACCEPTING RETURNS AT THIS TIME.