Accura Prism Finder and Reflex Housing for Canon or Leica Rangefinder

A curious piece of history to switch up your experience of any Leica screw-mount rangefinder (like this one) or another rangefinder such as the Canon P that uses the same screw-mount.  This prism finder attaches to the front of the camera to create a reflex viewing and shooting experience.  Comes with awesome original packaging and would look quite nice displayed on your shelf.