Also for for key switch inserts ref.-no.: 104.28, 134.18, 134.28, 133.18, 138.18, 106.28, for key switch inserts IP 44 ref.-no.: CD 104.18 WU, CD 134.18 WU, CD 133.18 WU, CD 106.18 WU. One escutcheon plate with symbols and one without symbols included in delivery.Height of escutcheon plate: 11 mm (thermoplastic) or 17.5 mm (metal versions)