entry from table Sword Smiths
Yukiyasu
行安
Yamato Suke/Kami, Naminohira
1848
N5,128,130,147,385,397, OT366, FT14,6, TS410, S410, JN14,1,13/14,3,27/20,4,27, HH651-3, NX1027, KZ676