Bubble case is very beat up, lens is pristine, no scratches/fog/fungus. Please note this a later model with the "MM" markings. 

From Mir: "the short mount Nikkor-Q 1:4 f=13.5cm Bellow lens head has been designed to pair in use with Nikon Bellow Focusing Device. The bellow device, offers further separation of a Nikkor lens with the film plane. FLEXIBLE lens to film plane separation is the key word as compare to a close-up lens such as Micro-Nikkor. With the 135/4 Bellow lens head, a maximum reproduction ratio of 1:1 is achievable ! (Note: Micro-Nikkor 5cm/3.5 + Nikon Bellow only delivers approx. 2.2X in this combination). The lens has an auxiliary preset ring at the front. Nikon Bellow Focusing Device model I, II are compatible. Lastly, accessories such as BR-1 (for RF lenses use on Bellow),N-F tube enables the lens to be used for Nikon F bodies but Nikon had eventually redesigned the Bellow-Nikkor in different configuration to replace the S-mount Bellow lens head at later years (see below). Unless there are versions that I am not aware of, this lens only has black finishing, Please also take note that, officially the lens was not referred as "Bellow-Nikkor" but simply as "Nikkor-Q 1:4 f=13.5cm", so, the bellow lens head may create some confusion with the early, discontinued Nikkor-Q.C 1:4 f=13.5cm. None has "C" after the lens data either, because by then, most of the Nikkor were took for granted as being coated lenses."