Aritsugu Special Deba Knife, Blade Length 16.5cm, with Sheath

Thank you for looking.
This is a Deba knife from Aritsugu.
It's a convenient size with a 16.5cm blade length.

Measurements are approximate:
Total length: 30cm
Blade length: 16.5cm
Thickness at the heel of the blade: 7mm
Weight: 219g
Please refer to the photos for more details.

There are some stains and rust marks near the heel of the blade (darkened areas), but it doesn't look heavily used.
A new one costs around 50,000 yen.

As this is an expensive item, please feel free to comment if you have any questions.
Thank you.