This is a high-quality inkstone from Matsusendo in Sendai. "Zuigan-ji Temple, Matsushima" is carved on the bottom. Matsusendo, founded in 1921 (Taisho 10), was known as a long-established company that mainly manufactured "Sendai brushes," high-quality calligraphy brushes designated as a traditional craft of Miyagi Prefecture, and also sold calligraphy-related tools. However, the shop closed after the Great East Japan Earthquake. 13.6 x 7.7 cm Please allow for some error as this is amateur measurement. The box shows signs of aging, but the rest is well-preserved. Please check the images and consider purchasing.