This ink stick is made with the dispersion of carbon particles constricted and the murkiness retained, which is made into the strength of the color of sumi with redness (warmth) and white light (grace). It has a little strong yet graceful reddish brown black tone with reddish (warmth) transparency. It can be used with any shade of black, thick, medium, or thin but we seek to materialize the expression of bright black focusing of the tone of sumi especially with from middle thickness to usuzumi (thin black sumi)As the ink stick gets older, with the change in the shin and the nijimi, the transparency of the tone of sumi will increase and the calm vividness of sumi and the brightness will develop. Manufactured in 1983.