The manipulation of the plates in the camera itself is still a mystery to me - in order for the camera to function as falling-plate, there must be some provision for moving the exposed plate out of the way (usually falling forward, hence the name 'falling-plate') so that the plate(s) behind the first can be exposed. There is no obvious lever or button on the Gnom that would accomplish this. 

Although this example is in generally excellent condition, it should be noted that there are a few components missing: least important was a string that kept the lenscap attached to the camera; next in importance was the leather top carrying strap; and finally, of greatest importance was the clip-on reflex finder which allowed the photographer to frame his subject.