Mazda G.E. Research Laboratories 1920 Ad
Mazda G.E. Research Laboratories 1920 Ad. This black and white December 11, 1920 ad states Mazda Lamps, Research and a Result. The dirigible that called a fleet of subchasers to destroy a skulking U boat depended upon the Pliotron, the heart of the wireless equipment from, Research Laboratories of G.E. Co. Picture shows airplane flying over ship in water. Also shows Air ship. Magazine tear sheet picture is taken through plastic and may show wrinkles or crookedness that is not in the ad. This original magazine tear sheet measures 7 1/2 inches wide by 12 inches tall.
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