A remarkable and historically significant set of official commemorative medals issued in 1972 to celebrate the return of Okinawa to Japan after 27 years of U.S. administration following World War II. These medals, officially recognized by the Ryukyu Government (琉球政府公認). One of the medals — housed in a luxurious black lacquered presentation case with purple velvet lining — was crafted by Mitsui Kinzoku Co., Ltd. (三井金属鉱業株式会社), a leading Japanese mint known for producing high-quality ceremonial and commemorative pieces. Details: Origin: Japan (Okinawa Prefecture) Title: Okinawa Reversion to Japan Commemorative Medal (沖縄日本復帰記念メダル). Issuer: Officially Recognized by the Ryukyu Government (琉球政府公認). Date of Issue: 1972 (Showa 47), commemorating May 15, 1972 — the official reversion day Manufacturer: Mitsui Kinzoku Co., Ltd. (三井金属鉱業株式会社) Material: Bronze Packaging: - One medal in black-lacquere case with purple velvet interior and gold Japanese lettering. - Four additional medals in individual transparent display cases with original descriptive cards in Japanese. Diameter (main medal): Approx. 60 mm Conditions: Good vintage condition. This is a used item and sold 'as-is'. There are scratches and stains. Please inspect all images carefully. These medals are highly collectible, representing one of the most important political and cultural events in postwar Japan. A fine addition to collections of Japanese numismatics, postwar memorabilia, or historical commemoratives. 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.