Identification, unknown tanto

[Salvatore Sinodo]

Hello, if it possible any information because I think the shape is a little bit strange for tanto. Nagasa is about 22 cm.

 

[Majestic]

Too hard to tell what it is. It doesn't look like a typical, traditionally forged Japanese tantō.

 

[Salvatore Sinodo]

Too hard to tell what it is. It doesn't look like a typical, traditionally forged Japanese tantō.

Thanks again for your reply!
I'm wondering because it looks old, why someone made a type like this.