Long WAKIZASHI, Spider Web Kojiri, Signed Tosho TSUBA, Rayskin Scabbard

The tip of the scabbard, which is covered with Rayskin, has a Kojiri with a spider web design.
The signature Tosho-Tsuba remains faintly.

What is Tosho-Tsuba(刀匠鍔)?

Tsuba is said to have been made from leftover iron from the production of swords.

It is characterized by its simple design and thinness.

Signature : Mumei (Unsigned)
Nagasa : 538mm (21.18 in.) 
Sori : 11mm (0.43 in.) 
Total length : 910mm (35.83 in.) 
Motohaba : 28.9mm (1.14 in.) 
Sakihaba : 18mm (0.71 in.) 
Motokasane : 6.1mm (0.24 in.) 
Sakikasane : 4mm (0.16 in.) 
Blade Weight : 447g
Total Weight : 937g