Pentax 67 reverse adapter (67mm) lens mount_Leica R no judgment here) then keep

no judgment here) then keep it in mind

A great companion for any LTM rangefinder

The box claims that this is for the Spectra System and that it "can also be used with Polaroid Impulse Cameras

5mm filter thread

8 Retina-Tele-Xenar is a telephoto lens for Kodak Retina Reflex cameras

Pentax 67 reverse adapter (67mm) lens mount_Leica R no judgment here) then keepThe Pentax 67 Reverse Adapter allows lenses wth a 67mm front filter thread to be mounted in reverse on a Pentax 6x7 camera. Can be used directly on the camera, or on bellows and adjustable helicoid extension tubes (not included.) In excellent condition, with minor cosmetic wear.