Approximately 15.5 x 3.5 x height 2.5 cm "Ryūhō" The "Hō" (芳) has a different shape, as shown in the photo. I'm not sure of the exact details. It comes in a wooden box, but part of it is damaged. The back of the box is marked "Ōgaya Yasaka Gama." It might be a different kanji, but if it's correct, I believe it's Oribe ware. Since this is all speculation, please examine the item and make your own judgment. It has been stored for a long time. We look forward to your purchase if you understand this.