This is an old Nakayama Tomae stone from the time of the now-closed Hatanaka Toishi hardware store! Nakayama is known for its top-quality Tomae yellow board nashiji, and this is one of them! As expected of Nakayama, the grinding power and the fineness of the finish are both superb! The shape is small, so it's offered at a lower price! Therefore, it's recommended for those who want to experience an old Nakayama stone before buying a larger one! Please give it a try!! 205 x 55 x 15