This came out from the back of the warehouse. I believe this is a grinding wheel for a water grinder made by Shimizu Seisakusho (Shimizu Manufacturing). It was manufactured in 1982, so I don't think there are many machines still using this grinder. However, if the hole diameter and outer diameter match, it's a good deal, so please consider it. Outer diameter: 255 mm Hole diameter: Approximately 19 mm Thank you for looking.