Vintage 6 Volt ERMSO park and emergency light system in new old stock (nos) condition. ERMSO comes with original box, instruction and a second chrome face plate. The attached chrome face plate has a little rust spot, so you can change that if you like. It has two functions. One is the park light automatic. The light sensor between the knobs will switch on the park lights in the dark and off in the morning (wow). The other knob / function is a hazard emergency flasher switch. The item is marked with “ERMSO Made in Western Germany, Kontrolliert 7. April 1965, Park = Parklichtautomatik / Blink = Warnblinkanlage”. It was tested 1965 in Germany and the size is 15 x 6 x 4 cm.