Sharpening Stone - Whetstone - Large Size, Knife and Tools Sharpener - Fine Grade Marble Polishing Stone - Natural Stone - Long Lasting : Amazon.co.uk: Home & Kitchen
Found at my grandmother's. We think it's used for sharpening knives or razors. Any ideas? : r/whatisthisthing
Sharpening Stone - Whetstone - Large Size, Knife and Tools Sharpener - Fine Grade Marble Polishing Stone - Natural Stone - Long Lasting : Amazon.co.uk: Home & Kitchen