An authentic vintage Japanese double-sided porcelain enamel advertising sign for Kobata (コバタ) chewing gum. This striking sign features oversized white 「コバタ」 lettering on a vivid red background, creating a bold and highly recognizable mid-century advertising design. Its clean typography and vibrant color palette embody the timeless aesthetics of Japan’s Showa-era commercial signage. Both sides retain their original porcelain enamel finish. The sign displays attractive age-related patina, including enamel wear, scratches, oxidation, edge chipping, and surface rust accumulated through decades of outdoor use. These authentic signs of age enhance its originality and collector appeal. A wonderful display piece for collectors of Japanese enamel signs, confectionery advertising, vintage retail memorabilia, and industrial décor. Estimated date: c.1950s–1960s Material: Porcelain enamel on steel Dimensions: * Width: approx. 45 cm * Height: approx. 33 cm Condition: Original vintage condition with enamel chips, scratches, oxidation, edge wear, and areas of surface rust consistent with age and outdoor display. Please examine all photographs carefully, as they form part of the description. Keywords Enamel, Sign, Kobata, Gum, ChewingGum, Japan, Showa, Vintage, Advertising, Porcelain, Steel, DoubleSided, Confectionery, Candy, Store, Collectible, Industrial, Retro, Memorabilia, Antique