This is a AccuSharp Knife Sharpener known as the AccuSharp, model 027C.
The AccuSharp(R) Diamond Pocket Stone is a dual-sided pocket sharpening stone featuring a 320-grit coarse diamond surface used for more aggressive sharpening" plus an 800-grit fine diamond surface used for honing and finishing. The Diamond Pocket Stone also has a groove used for sharpening all kinds of hooks and darts. The pocket stone comes complete with a handy AccuSharp(R) carrying pouch with a built-in belt loop for convenience.
Features:
320 and 800 grit surfaces
Includes carrying pouch
