Hul i glasplade Ø 20 mm.
Anvendt i: MO 7103, 7123, 8123, 8303, 8322, 8323, 8821, 9222, PI 8002, 8003, 8022, 8023, 8043, 8062, 8063, 8203, 8403, 8463, 8802, 9003, 9023, VA 7306, 7307, 8005, 8006,