Numata Imato whetstone, produced in the Numata area of Gunma Prefecture. It features a unique tiger stripe pattern, combining visual appeal with its performance as a whetstone. This item was directly acquired from an elderly person living near Takasaki City, Gunma Prefecture. There are almost no records of its mining, and it is now very difficult to obtain. ■ About its History The Numata region flourished during the Edo period, and it is said that whetstones produced in the surrounding area were used for polishing swords and tools. This whetstone also evokes a sense of that historical flow. ■ Performance and Applications Unique appearance with the Imato pattern. Optimal for the medium finishing stage. Gently refines the jigane (base metal) of kitchen knives, leading to the final finishing whetstone. Especially smooth transition from intermediate finishing to final finishing of blades. ■ Product Details ✔ Name: Numata Imato Whetstone ✔ Mining Location: Numata ~ Takasaki area, Gunma Prefecture ✔ Pattern: Imato pattern ✔ Application: Medium finishing for kitchen knives, tools, planes, etc. ✔ Condition: Surface adjusted ✔ Size: See photos ■ Notes ※ May contain streaks, color unevenness, and small chips characteristic of natural whetstones. ※ Please moisten with water before use. ✅ Free shipping (anonymous delivery) ✅ Instant purchase welcome