The blade was polished.
Habaki:gold foiled single habaki.
Blade length : 74.6 cm or 29.37 inches.
Sori : 2.2 cm or 0.86 inches.
Width at the hamachi : 3.21 cm or 1.26 inches.
Width at the Kissaki :2.19 cm or 0.86 inches.
Kasane : 0.85 cm or 0.33 inches.
Weight of only blade: 905grams
Era : late Edo period.
Shape : The blade is long, wide and thick with deep sori and longer kissaki nice looking shape.
Jitetsu :Koitame had well grained with jinie attach nice texture.
Hamon : Nioideki gunome midare and Cyoji midare mixed.
Boshi is midarekomi style.
Special feature : Ozaki Nagato Suke Masataka is a son of the Ozaki Suketaka
who was born at Oosaka. He was called Tenryusi Masataka
and later on he received the title Nagato Kami.
His subject is big difference between his father Ozaki Suketaka.
His subjects are very similar with Yokoyama school or Hamabe school.
This word looks Yokoyama Sukekane.
The blade is wide and thick healthy blade and once looking shape.
NBTHK Hozon Paper
Aoi Art estimation paper : whole Oshigata.