When I purchased my 1924 695 Sportbrohm, the brake light switch was removed (in a box of parts), and I'm not completely sure where it should be attached to the car. I assume it should be screwed to the underside of the floorboard so that it is lined up with the brake pedal, and so that the spring from the switch attaches to the pedal in the same eyelet as the brake pedal return spring. I think the floorboards in my car had been replaced, so there's no original screw holes to guide me. Thanks! John