The B10 is listed as:
SPECS:
Thickness: Approx. .230” B11 - .250
Blade Length: 10.25” B11 - 11.25
Overall Length: 15.25” B11 - 16.25
Weight: Approx 15 oz. B11 - 17.2oz.
Grind: Full Height
Finish: Hand Finished Satin
Edge: Blended Zero
Limited Edition Serial Numbered

Hmm, I don't have any 9 or 10 inch blades, guess I need both.

JYD 139
"Timid men prefer the calm of despotism to the tempestuous sea of liberty",Thomas Jefferson