A vintage Japanese enamel sign (ホーロー看板, Hōrō kanban) from the Shōwa period (c.1950s–1970s). The text reads 「技能者養成指導員之証」(Certificate of Skilled Worker Training Instructor) and bears the authorization of the Yamagata Labour Standards Office (山形労働基準局長免許). This type of sign was displayed at workshops or training facilities officially recognized by local labor authorities. The sign features white hand-painted Kanji on a deep cobalt-blue enamel surface, with authentic aging, rust, and weathering that add to its industrial charm. A fine collectible piece for those interested in Japanese Showa-era memorabilia, enamel advertising, or industrial history. Method of Shipment FedEx or Japan Post NOTICE The lot will be carefully packaged and shipped by FedEx or Japan Post. Delivery usually takes 1–2 weeks. Heavy items may be shipped by sea, which may take 1 to 2 months to arrive. The shipping method may vary depending on the item price and size. Sometimes Customs or the delivery company in your country may contact you by phone or email for clearance. Please make sure you are available to respond. If not, the parcel may be returned to me, and reshipping will cost more than twice the original shipping fee. I appreciate your cooperation.