This is a natural stone Amehata inkstone from Koshu, Yamanashi Prefecture. It has a beautiful, natural surface finish, and its shape is unusual for an Amehata inkstone, resembling the Ogatsu inkstone from Miyagi Prefecture. Amehata inkstones typically feature simple designs without elaborate carvings. They are known for their quality, emphasizing the stone's inherent beauty and the craftsmanship of the artisans. I haven't seen many Amehata inkstones as beautiful as this one. I'm offering it at a reasonable price this time. What do you think?