Jumyo 寿命 TANTO, Two certificates, with Kozuka, KOTO Muromachi period

This Tanto comes with two certificates.
Certificates for the blade and Koshirae.

The blade is a work from the Muromachi period, and the swordsmith is Jumyo(寿命).

His roots lie in the Tegai swordsmiths of the Yamato School.
It all began when one of them moved to Mino during the Kamakura period.
He was a swordsmith who was active for a long time from the Kamakura period to the end of the Edo period.

The Koshirae was probably a work from around the end of the Edo period.
[黒杢目塗鞘脇指拵] (Kuromokumenurisaya Wakizashi Koshirae)
  縁頭 : 桜花散朧銀地 (Fuchikashira : Oukachirashi Roginji)
  目貫 : 枝菊図赤銅地 (Menuki : Edagikuzu Shakudoji)
  鍔 : 梅樹図鉄地 (Tsuba : Baijuzu Tetuji)
  小柄 : 錨図朧銀地 (Kozuka : Ikarizu Roginji)

A Shirasaya is included, perfect for storing the blade. (Only one blade is included.)

Signature : Mumei (Jumyo)
Nagasa : 270mm (10.63 in.) 
Sori : 0mm (0.0 in.) 
Total length : 490mm (19.29 in.) 
Motohaba : 25.7mm (1.01 in.) 
Sakihaba : 17.5mm (0.69 in.) 
Motokasane : 6.3mm (0.25 in.) 
Sakikasane : 4.4mm (0.17 in.) 
Blade Weight : 196g
Total Weight : 589g