Hello - I bought this 10+ years ago at the cold steel sale in Ventura, CA. I think it is the master tanto model, it was made in Japan. Not sure if it is San Mai or not. It was not in the package when I bought it. I would say it is in good to excellent shape. I never used it.
Specifications:
Weight: 9.5 oz.
Blade Thickness: 3/16"
Blade Length: 6"
Handle: 5 1/2" long. Kraton
Overall Length: 11 1/2"
Sheath: Black Leather Sheath