From AI: This is a matcha tea bowl of Shino ware, a type of Mino ware. Shino ware is known as the first Japanese pottery to use white glaze, fired in Mino (present-day Gifu Prefecture) during the Azuchi-Momoyama period. Those with iron-painted patterns, as seen in the image, are called "E-Shino" (painted Shino). Stored at home. Will ship anonymously.