Brand: Mitsubishi Pencil Co.
Made in: Japan
Here we have the old JIS or Japanese Industrial Standards symbol on the reverse, dating this 4B to pre–2008. Check out the BNP blog for more fascinating information about vintage Japanese pencils.
Founded in 1887 and formerly known as Masaki Yomato, Mitsubishi Pencil Co., Ltd. is best-known today for its “uni” 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.