This vintage two-sided signboard from the early Showa era is an advertisement for the Koumugi wheat flour brand, likely from just after World War II. The Koumugi brand, representing a regional wheat company, uses vivid colors like red, blue, black, and white to convey the purity and quality of its flour products. During the post-war period, many smaller businesses used eye-catching signs to promote their goods, and this signboard is a prime example of such marketing. Measuring approximately 30 cm in height by 45 cm in width, the signboard shows signs of age, including rust and wear, which only adds to its vintage charm. A wonderful piece of post-war Japanese advertising history, this sign would be a valuable addition to any collection of retro signage or memorabilia from the Showa era.
