Index of Japanese Sword Literature v. 0.12, compiled by Grey Doffin. Hosted by The Japanese Sword Society of the United States : view entry number 3179 in 'Sword Smiths'

Yukihira
行平

Miyaira, Living National Treasure
1935
HH1,679/2,238-40, GD2-11, TS8, JN10,1,13/18,4,11/46,6,24, see also Akihira, Miyairi

Index of Japanese Sword Literature compiled by Grey Doffin Hosted by the Japanese Sword Society of the United States