Letterbox casing, and rear wall for such a casing

摘要

Letterbox casing (1) for an individual letterbox or group of letterboxes, with side walls (2 to 4) and a rear wall (6) fixed to the side walls (2 to 4). It may be made by assembling a number of coated metal sheets, while the rear wall (6) is connected to the side walls (2 to 4) by means of folded seams (7), the resulting join being firm and preventing the ingress of dirt and moisture. <IMAGE>