Abstract: A marker plate receptacle, formed by two plates pivotably connected with each other via a film hinge, in which a marker plate is received. A tongue is formed in one piece on the lower end of one of the two plates. It has a hook which can be put over a wall extending perpendicularly to the surface of the inside of the plate and around a through hole. Once the marker plate is inserted and the hook of the tongue, on which a key is placed, is put over the annular wall, the two plates are folded together. The tongue is then form-fittingly maintained between the two plates and the plates themselves are maintained by a form-fitting ridge formed on the annular wall, which extends through the through hole in the rear plate. The form fit is additionally improved with ribs engaging grooves.