Nikon Microscoop adapterkit model 2 voor Nikon F カメラアクセサリー

Microscope adapter kit model 2 for Nikon F, in almost new condition and tested to be working, dating from 1970–1980, including original box, leather case with dark red velvet lining, green filter and F matte glass for microscope photography, plus the 1970 purchase receipt and original plastic bags.