Konosuke Fujiyama White #1 Nakiri 180mm. Konosuke Fujiyama series is a group of knives that are made by a particular blacksmith that does excellent work. This group of knives uses White #1 steel. This steel is sought after and made from Japanese pure sand irons at their famous Yasugi plant in Shimane Prefecture. The handle is made of ebony with blond buffalo ferrule.