Nakayama (中山) (attributed) - Working tool - (Toishi) 天然砥石

This is a compact natural sharpening stone, 天然砥石 (Tennen Toishi), likely from the famous Nakayama (中山) region, known for producing high-quality finishing stones for Japanese knives.

The stone features a fine-grained surface suitable for precision sharpening and finishing. Its small size makes it ideal for detailed work or as a portable sharpening tool. The surface shows natural coloration and patterns typical of authentic quarry stones, including brown layers and mineral inclusions.

Visible inscriptions and stamps indicate traditional Japanese origin and quality grading. As a natural stone, slight irregularities, color variations, and minor surface marks are expected and contribute to its authenticity.

This piece is suitable for collectors, craftsmen, or chefs who appreciate traditional Japanese sharpening tools.

Method of Shipment
FedEx or Japan Post

NOTICE
The lot will be carefully packaged and shipped by FedEx or Japan Post.
Delivery usually takes 1–2 weeks.

Heavy items may be shipped by sea, which may take 1 to 2 months to arrive.
The shipping method may vary depending on the item price and size.

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If not, the parcel may be returned to me, and reshipping will cost more than twice the original shipping fee.

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