This is a AccuSharp Knife Sharpener known as the AccuSharp, model 064C.
The AccuSharp Tri-Stone Knife Sharpening System provides easy sharpening and honing for any straight-edge blade. AccuSharp's three-stone surfaces includes coarse" medium" and fine alumina-oxide stones. This Tri-Stone System provides extra durability and safety on any surface with a rubber-grip base which prevents sliding while sharpening and honing your knives. Additionally" the Tri-Stone Sharpener base can be mounted to most countertops for extra stability. Also included is an angle guide to assist in maintaining a consistent angle while sharpening.
Features:
Coarse, medium and fine alumina-oxide stones
Can be mounted to countertops