Rare Gakumei 額銘, Kunitsugu 国次 signed Wakizashi, KOTO Muromachi period

A rare Gakumei Wakizashi.
Normally, when you osuriage, the signature disappears.

In this work, only the signature was cut out and transplanted to the Tang that was osuriaged.
This kind of measure is rarely taken to preserve the original signature for future generations.

This is called Gakumei(額銘).
NBTHK Shinsa paper.

Signature : Kunitsugu (Gakumei)
Nagasa : 408mm (16.06 in.) 
Sori : 8mm (0.31 in.) 
Total length : 600mm (23.62 in.) 
Motohaba : 25.6mm (1.01 in.) 
Sakihaba : 17.4mm (0.69 in.) 
Motokasane : 5.9mm (0.23 in.) 
Sakikasane : 4.3mm (0.17 in.) 
Blade Weight : 324g
Total Weight : 530g