This is an original 1931 black and white print ad for the Sunlight Mazda Lamp that was made and sold by the Incandescent Lamp Dept. of the General Electric Company of Nela Park, Cleveland, Ohio (OH). The ad also features a small, Art Deco style portrait of German physicist Johann Wilhelm Ritter (1776-1810) in honor of his research about Ultra Violet light and its radiation.
This 82+ year old Item is rated Very Fine +++. Light aging throughout. There is light bleedthrough on this piece from the verso. Some light surface rub.
Keywords specific to this image: Vintage Advertising, Science, Great Depression Era