![](/imagecreator/convert?name=0_12_1147_01310_0810&mime=jpg&fast=on&e11=dk_ros_lo_rr_0810.png&e12=dk_ros_ro_rr_0810.png&e13=dk_ros_lu_rr-lochungrpz_0810.png&e14=dk_ros_ru_rr-lochungrpz_0810.png&e25=dk_ref_lo_1147_rr_0810.png&e26=dk_ref_ro_1147_rr_0810.png&e29=han_lo_1147_0810.png&e30=han_ro_1147_0810.png&e33=dk_loch_lu_lochungrpz_0810.png&e34=dk_loch_ru_lochungrpz_0810.png&n=740&e=110&s=1100&w=930&f=564)
The FSB logo echoes a lever handle designed by Austrian philoso pher Ludwig Wittgenstein in mid-1920s Vienna. This is the original upon which all similar door handle shapes are based. By adding a conical neck and spherical tip we aimed to set ourselves apart from the many other variants of this lever handle on the market.