Vivitar Series 1 90mm shops f.2.5 macro lens with Adapter

Product Name: Vivitar Series 1 90mm shops f.2.5 macro lens with Adapter
Excellent condition, VMC glass is clear & clean, no scratches, no haze, no fungus. This is the very rare “Bokina” produced by Tokina exclusively for Vivitar with favorable bokeh. Extremely shops sharp with fantastic detail. Rated one of the best highest quality lenses ever made. Includes original macro adapter. OM mount Note—Adapter, not Lens, has minor fungus on rear element only, thus price reduced. Have tested, photos unaffected. Tried to show in last photo.  Update—forgot to include original lens filter, obviously has worked well to protect glass surface.