A very rare, large oblong kanban 看板 (shop signboard) advertising Seikaigan 清快丸, with identical design on both sides. Seikaigan 清快丸 is the name of a late-19th to early-20th century Japanese patent medicine produced by Takahashi Seidaidō in Osaka. It was a small pellet medicine, similar to Ninjin (仁丹), used for many common ailments. The upper section presents a charming basset hound shown in profile, the brand’s advertising mascot, holding a gilded scroll in its mouth. Set against a polished black lacquer ground, the signboard is decorated with carved and gilded characters, along with the colourful lacquer depiction of the dog. Along the right side runs the inscription: “An effective remedy for restoring vitality, dispelling toxins, relieving stomach pain, acid reflux, and hangovers.” 氣附毒消腹痛 溜飲二日酔の良劑 Along the left side: “Main distributor: Takahashi Seidaidô Pharmacy, Shijimi-bashi, Dôjima, Osaka.” 本舗 大阪堂島蜆橋髙橋盛大堂藥局 Fitted with iron hardware at the top for suspension and scrolling side handles. Dimensions: Length 131 cm, Width 47 cm, Depth 3 cm Period: Around 1900 - Meiji period In a good condition with signs consistent with age, warped, minimal losses and old restorations. Please refer to the photos for a clear condition reference. When shipped, we will include a certificate of authenticity. Please note: Due to the holidays, shipping and handling times may be longer. Thank you for your understanding.