Siemens keyswitch, C, 22 mm, round, plastic, lock number S-10-CG, with 2 keys, 3 switch positions I>O<II, momentary contact type on the left, latching on the right, actuating angle 2x45°, 10:30h/12h/13:30h, key removal O+II, with laser inscription, in upper case and lower case, always upper case at beginning of line