77mm x 71mm x 4mm(center) 5mm(rim) weight
signature: "Naoaki (kao)" (Kao is a special type of signature
used like a seal.)
He is a student of "Jirotaro Naokatsu".
This tsuba is formed by Nobuie style. It was a fashion
at the age of 19th century.
He copied the ageing effect too. The big dimple on the reverse surface
is original that was designed by the smith. (=> The
He is famous for such Nobuie style tsuba. But we have
never seen a blade with his signature.
This is a good example of his work.
The hexagon design is even on the rim. The holes for
kozuka/kogai are filled with lead.
NBTHK paper is added.
The big dimple on the reverse
is not a rust damage. It is originally designed by the smith to make an
appearance of old tsuba. To make an old looking appearance is a fashion
in shin-shinto period, on blades and on tsuba's.
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