A closer look to the projectors head. Constantly lubricated gearbox, all gears are made from hardened steel. This projector will hold up almost forever. Although the threading path is very easy, I have seen projectors where the lower loop has constantly been too big and the paint has been worn off from the projector. Right before the take-up reel you can see the cue detector for automated changeover. But the movies here are showed only once, so the changeovers are done manually.
April 2009 photo from the Olev Mihkelmaa collection.