The Bau-style door handle continues the trends of the 1930s, which were influenced by Bauhaus and Art Nouveau. This door handle on a rectangular shield is made of zamak and is coated in anthracite gray. This construction style doorknob is supplied in pairs and the sign is provided with a 72mm keyhole and screw holes. The advantage of door handles on shields is that they often cover the holes that were previously visible in the door.