entry from table Sword Smiths
Yukihiro
行弘
Chikushu ju, Sa
1350
YK647, FT42,L2/71,6, MH181, UP213, N9,F34,48, NK957&p, TS430, SZ271, NT3,248, TB11,L3*/32,28/40,9*/50,L2*
Juyo 50,137&253