The suzuri (inkstone) from Mihara Village, Kochi Prefecture, is made from black claystone dating back approximately 60 million years, sourced within the village. It has dense hōbō (ink-grinding surface), exhibiting gold and silver flecks, and is excellent for grinding ink, producing beautiful ink splashes. This is a natural inkstone source stone of superior quality. I purchased this inkstone about thirty years ago and have kept it in my possession, but I realized it would be a waste to leave it unused, so I am offering it for sale. I hope someone who can use it will appreciate it. - Material: Natural black stone - Brand: Tosa Suzuri (Tosa Inkstone) - Size: Approximately 15cm x 20cm x 3cm (Ink well depth: approx. 2cm, Weight: approx. 2.2kg)