Up for sale is a vintage manual focus Kern-Paillard 75mm f/2.8 Yvar AR C-mount tele cine lens, serial #98912, which comes with a push-on front cap & a leather case, but no rear cap.  The glass is in clean shape with no scratches or fungus present.  As with any lens this old, there are undoubtedly some tiny specks of internal dust (and I think I see a couple tiny air bubbles), but this won't have an effect on image quality.  Focusing is smooth, with close focus down to 5 feet; aperture adjustment is likewise smooth, but there is some oil on both sides of the 15-blade iris.  Cosmetically, the lens is fairly well-preserved with only minor overall wear to the barrel (more moderate wear to the case).  Please be sure to fully enlarge the provided photos, and feel free to contact me with any questions.