This is a Showa-era CASIO PERSONAL-2 electronic calculator, featuring a fluorescent display tube with illuminated numbers. It is a classic example of late-1970s Japanese electronic design, manufactured by Casio Computer in Japan. According to the history provided, this model was purchased around December 1978 (Showa 53), a period of rapid innovation in electronic calculators in Japan. Shortly after purchase, newer models appeared on the market, and this unit was stored and used only minimally. The calculator is battery-powered (2 AA batteries, not included) and has been tested and confirmed to operate properly. As expected for its age, there are scratches, stains, and signs of wear due to long-term storage and aging. Because of its age and historical value, this calculator is recommended mainly for collectors of retro electronics rather than for daily practical use. It remains a fine example of Made-in-Japan craftsmanship from the Showa period. Please review the photos carefully and purchase only if you understand and accept the vintage condition. 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.