SUMI (Ink Sticks)

Kogaboku (Ink Stick) Kogaboku (Ink Stick)

As time goes by, ink sticks change from moment to moment. It is caused by the secular change in the bone glue and the related spontaneous agglomeration of the soot, creating richness in the tone of ink black. This is why it is said that the old ink sticks are good. Kogaboku is a series of the ink sticks produced more than 30 years ago.