This is Nakayama Hakudo. Nicknamed "God of Kendo". Only member of the All Japan Kendo Federation to achieve both 10th dan and Master instructor titles in Jodo (art of the jo staff), Kendo (fencing), and Iaido (sword drawing). He had an instructor license in Shinto Muso ryu and achieved the Menkyo Kaiden scroll in Shindo Munen ryu, making him 7th soke of that style, and was the 18th soke of Hasegawa Eishin Ryu. He is founder of Muso Shinden ryu Iaijutsu and was the man who coined the term "iaido".
Dai Ketsuki No Satsu