Hello all, a friend gave me a almost never used hone. He got in when he was in barber school way back in the late 60's. It has been said that barbes used them for a touch up. The only markings on the box are Deluxe No.500. From that I would guess 500 grit. It comes with a 'slurry' mini stone. Does this mean it's a waterstone? I don't think so but not sure.

If I use it I guess it will remove the edge faster.But something tells me that it should be sparingly and lightly. Thanks Nick