Cooke 12.5in (302mm) f5.6 Series VIII Telephoto Anastigmat, Serial no. 266179. The front and rear elements have no scratches. Some light dust inside, no internal fungus or separation, no oil on aperture blades, aperture and focus turn very smoothly.  This is a very nice lens. Paypal payment or local pick up preferred.  We will ship with insurance and a signature will be required. Please let us know if you have any questions. Thank you and good luck!