Im actually not positive what version this lens is. Its a 50mm Nikkor f1.4. It has a silver ring in front of the aperture with only a single black dot at the selected aperture position and the focus point distance. There are smaller aperture numbers on the end of the lens closest to the camera so I can read them through my F3 viewfinder. The aperture numbers are color coded to the DOF guide scale. I cannot find an image of my lens online anywhere. It has block grips on the barrel, most of the ones I see online have two rows of these, mine has three. The lens also gets a little larger as it goes towards the front element and dips down into the front element. The serial number is 2825811.