Revue 500EF, one of the compacts I once enjoyed, but not in the last 10 yrs or so. It is actually a Chinon camera, made in Japan, said to have been branded for Germany (as in the case of this Mamiya 16). as Revue, to be sold on the German and other various markets. It is quite a smart(ish) camera, with a Revuenon 38mm lens, 2.8 coated. There is a ASA setting ring around the lens. Near the lens a self timer lever can be also found.
A programmed shutter from 1/60 to 1/300 of a second, which is plenty if you have the right film, that is. Above the lens there is a CdS cell meter, which is said to be quite accurate. The flash is an automatic one, and it is controlled by the aperture calculated by the camera.
The camera has a distance focus ring, which is set according to the 4 icons on the exterior ring: portrait, group, infinity. Film winding is achieved by a lever with the release button (threaded) on it; rewinding of the film is manual. A flash lamp is situated on top plate, together the frame counter, near the winding lever.