Hella 12V Fog Light Lamps 5-pin Relay 1972 NOS

12V Hella fog light lamps relay with connector 85, 86, 87, 87a, 30/51 in new old stock (nos) condition. The 5-pin connector relay is stamped with "Hella, Made in Germany, 91/49 12V". The box is stamped with "Hella, Made in Germany, 91/49 12V, 4RD 001 838-011". The basic circuit diagram instructions is from 8/1972. The diameter is about 4 cm.