Natural Whetstone Umegahata Ootsuki Finishing Polishing White Suita Sumi-nagashi

It's no exaggeration to say this is a large rough stone.
I received it as something from old mining days.
The saw marks are a distinctive feature.
Approximately 18.2cm x Approximately 13.7cm x Approximately 3.0cm
It's just big.
Visually, it's a suita (a type of natural whetstone) with sumi-nagashi (ink-like patterns) and some catfish patterns are also visible.

A super finishing whetstone with high grinding power.
As expected from a large-tusked suita, it sharpens the edge while providing a slightly hazy finish.

It's a wonderful whetstone with a hardness that makes it easy to sharpen, producing exquisite serrations with a balance of fine texture and roughness.

This is a rare natural whetstone from Ootsuki, which is said to be legendary and difficult to obtain.
The surface has not been flattened, and there are some scratches, but they do not interfere with its current use.
Please understand it's a no-return, no-refund, no-complaint (3N) sale.
Thank you for your consideration.

- Material: Natural whetstone

- Features: Large grinding marks on the surface

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- Use: Natural whetstone for sharpening

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