SMC Pentax 6x7 165mm F2.8 lens for Pentax medium format film camera, inherited from my father, is in working condition. The lens is in very beautiful condition, with no scratches or mold visible to the naked eye. However, there is a single white speck in the center of the lens, and I'm not sure what it is. It may be difficult to see, but it's in the attached photo. Gently wiped with a cloth and cleaned with a blower. I will ship it with care.