This is a roll film camera, model 900 "Electric Eye," made of a polished steel body with grey texture covering. It is similar to the model 850, except for its single-window viewfinder/rangefinder with projected framelines and automatic parallax compensation.
As model 150, this camera is equipped with an electrically controlled shutter and an automatic programmed exposure set by CdS cell (manual control also possible by EV settings). It also has a M-sync flash done via the Polaroid "hot shoe" and a X-sync flash done via a special bi-pin connector. The focus knob is on the camera bed. It has collapsible bellows and a leather hand strap.
Instructions are found on the back of the camera. The film is released with a flip-style switch.
This information and much more is found on the very useful Land List
website.