Gendai katana - Yakumo Masakiyo
 

Blade type Katana
Blade length (nagasa) 61.8 cm / 24.33 inches
Blade shape (sugata) Shinogi-zukuri
Thickness mune-machi 0.7 cm / 0.28 inches
Width mune-machi 3.4 cm / 1.34 inches
Thickness yokote 0.5 cm / 0.2 inches
Width yokote 2.4 cm / 0.95 inches
Curvature (sori) 1.6 cm / 0.63 inches
Mune type Ihori
Grain structure (jihada) Ko-Itame
Temper line (hamon) Choji, Gunome
Kissaki type Chu-Kissaki
Boshi type O-maru
Activities (hataraki) Nioi
Tang type (nakago) Ubu
Nakago length 21.1 cm / 8.3 inches
Nakago-jiri Kurijiri
Yasurime Kesho
Mekugi-ana # 1
Mei Yakumo Masakiyo (in gyoshi)
Period Gendai
Koshirae Shirasaya
Comment

In the 1941 sword exhibition, he ranked 1 seat! Very high for all the smiths at that time who entered. In 1942 he became head swordsmith for the Izumo Seiko (Izumo Steel Works Company) located in Shimane prefecture. He sold his blades for the same prices that the yasukuni shrine smiths sold theirs for at that time, He formed his own school and had two renowned students.

He signed also Yakumo Amatsu Masakiyo