The manufacturer is Ruberg & Renner of Hagen in Germany, the production year is 1931-1934. Hollywood is a small device Duplo traditional way Ruberg & Renner. It is made of metal, covered with a cracked black paint. Some pieces are chrome or corners. The shutter has two speeds, instant and pose. The lens has a small aperture and a fabricated lens Rodenstock as shown in the front of the lens. battery is placed on unscrewing as a Photax lens. The Duplo is a biformato 3 x 4 cm and 4 x 6 cm. Reformatting is done thanks to an ingenious system of cranks operated by a lever that slides on the base of the device. These rods move decks within the chamber. Another"" automation"" is the display of the display frame. When the lens is placed, a pawn in the viewfinder frame and pushing up the overall look is placed. This viewer is also equipped with caps on the front to change the frame according to the chosen format.
