Tokyo Artillery Arsenal Baby Nambu sn 4815 Axis Pistols p 296. Tokyo arsenal with matching mag!  A desirable early production Japanese "Baby Nambu" Type B pistol with matching magazine. These rare Nambus were manufactured by the Tokyo Artillery Arsenal in Koishikawa, Tokyo circa 1903. Although never officially adopted, they were a private purchase weapon that was intended as a status symbol for high ranking Japanese Army and Naval officers. The chamber bears the four-intertwined cannon-balls of the Tokyo Artillery Arsenal, and the left side of the receiver is marked with Japanese characters that identify the model with serial number 4815 directly below that.  The "Baby Nambu is the scarcest and most desirable Japanese semi-automatic pistol. These rare pistols have a rust blue finish with a bright polished "in the white" bolt with the straw colored trigger, magazine release, sear pivot pin and bolt lock.