ZEISS 9CM, 90MM 3.5 TESSAR SCARCE LENS* AS-IS.. SHUTTER DEFECT, CLEAN ELEMENTS

9cm 3.5 are not to many around of this lens.!  Shutter speeds all the same, except 1/400 that is pretty accurate. B, T settings work.
The lens is cosmetically in good condition. Lettering is bright. Barrel shows some signs of prior use. Barrel shows no dings, no dents, minor paint rub off, no scuff marks and no scratches. The elements are in very good condition. No cleaning marks, no scratches, no haze, no fungus, no separation. Shows no dust particles inside. Aperture blades show hardly any wear and are clean. Aperture open and close perfectly and smooth. No returns!