Like new example of exquisitely rare Asanuma Adapter permits Polaroid 100 film holder to be used with classic Nikon F SLR.  Film back uses Polaroid 100 instant film.  Device is near perfect condition except for the deterioration of the collector lens light shield which is typical for the 50+ age of the foam light shield.  Light shield can be easily replaced in order to make the device functional.  The adapter comes in shop worn original box with a photocopy of the original instructions.  This superb Nikon F SLR collectible was used to make instant test photographs as well as for scientific photography.   Priority mail shipping.  Questions?  Email seller.