Here is a "Matured "Mistsu-Bishi" 9800 *B*" pencil. From the marking of the company's "Established 1887" we can presume that this was likely a promotional pencil for the Mitsubishi Pencil Company, who now specializes in the production of the "uni-ball" brand of pens; they should not be associated with the "Mitsubishi Group", despite their identical logo. This particular pencil is in a dark, almost "forest", green. The serial number is 07Ak954.
Specifications:
"Matured" to a prime age
It is stamped with the "General Writing" category (due to it's *B* class medium density lead)
Classic Hexagonal shaping
Basic writing comfort
6/10
-Jamie A.M.