A bold and visually striking vintage Japanese double-sided enamel advertising sign for ミツワ煉炭 (Mitsuwa Rentan / Mitsuwa Coal Briquettes). The design features a powerful red ground with crisp white typography, centered around the iconic Mitsuwa triple-circle emblem, a well-known symbol in Japan’s fuel and household energy sector during the Showa era. The layout includes: * ミツワ (Mitsuwa) * 煉炭 (Rentan / Coal Briquettes) * 特約店 (Authorized Dealer) This sign would have been displayed at an official retailer, promoting solid fuel products widely used in mid-20th century Japan for heating and cooking. The minimalist yet highly impactful composition—combined with the strong contrast and emblematic branding—makes this piece especially desirable for collectors of industrial advertising, Japanese kanban signage, and Showa-era design. As a double-sided sign, it is ideal for suspended or projecting display. The authentic aging—rust along the edges, enamel wear, scratches, and surface marks—adds depth, character, and historical presence. ⸻ Estimated Period Likely Showa period, circa 1950s–1970s ⸻ Size Approx. 30.5 × 46 cm ⸻ Condition Vintage used condition. Visible enamel loss, rust, scratches, stains, and edge wear consistent with age. Mounting holes present. Please review all photos carefully for full condition details. ⸻ Collector Appeal * Japanese enamel signage (kanban) * Fuel / industrial history (coal briquettes) * Showa retro commercial design * Authorized dealer signage * Strong graphic décor piece ⸻ Popular Keywords Japan, Japanese, enamel, sign, signage, kanban, vintage, retro, Showa, coal, fuel, industrial, advertising, metal, collectible, Mitsuwa, logo, shop, display, antique, decor ⸻ Important Information Import duties, taxes, and customs clearance fees are not included in the item price. These charges are the buyer’s responsibility. VAT paid to Catawiki is separate from and does not include import duties or customs clearance fees. Shipping is usually by Japan Post airmail. DHL or FedEx may be available upon request for an additional cost. In case of damage during delivery, please contact the seller immediately before leaving negative feedback. For postal damage claims, please report the damage to your local post office within 7 days of delivery and keep all packaging materials.