Brand: Mitsubishi Pencil Co.
Made in: Japan
Clearly an ad pencil from Mitsubishi. Middle pencil says (Matsushita Electronics), which is actually the Japanese name of Panasonic. Bottom pencil says “Syayou” 'For company use) It is also common to find US brand names with company information on the reverse. When I was a kid growing up just north of D.C. I remember fining a Blasidell Ben Franklin 500 with U.S. Senate on the reverse. We know where that pencil came from. Personally I never liked them much until recently. I mean if you're going to have a Ben Franklin 500 in your collection why not a special label on the reverse. In the case of the Japanese pencils, I really dig the Kanji.
Founded in 1887 and formerly known as Masaki Yomato, Mitsubishi Pencil Co., Ltd. is best-known today for its uni-ball brand of quality writing instruments sold worldwide. Curiously, this Tokyo-based business is unrelated to Mitsubishi Motors and other brands within the Mitsubishi Group. Same name, same logo, completely different company.