Vintage Philips Mørkelægningslampe No. 4074 Blackout Light Bulb

Beskrivelse

A vintage Philips blackout light bulb, model No. 4074, designed for use during wartime or civil defense. The set includes two black-coated incandescent bulbs, one housed in its original blue and yellow Philips cardboard box. Accompanied by original Danish instructional paperwork titled 'Mørkelægningslampe', detailing indoor and outdoor usage for marking doorways. Features a standard screw-in base and 'SM Dansk' branding on the documentation.