(Note: Measurements are outside max. dimensions unless stated otherwise).19th Century : Adam style escutcheon with shield design swing cover plate. OUTSIDEHeight 126mm. (5")Width 40mm. (1 9/16")Depth 12mm. (7/16")KEYHOLEHeight 22mm. (7/8")Diam. of hole 9mm. (5/16")Width of neck 5.5mm. (3/16")Solid shield cover plate swings on top hung pivot pin.