Olympus OM Zuiko 50mm f3.5 Macro Lens - Great Condition

This lens is in great condition. The aperture and focus ring are smooth and consistent. The aperture blades are clean and responsive. The optics are clear and in great condition except for a small scratch on the rear element (see image 4). I have film tested the lens and this does not affect image quality whatsoever (see images 5 and 6).