The inkstone measures 11.5 x 15.5 x 2 cm. I'm not entirely sure, but I believe it's from the Shezhou family. It shows some signs of use. Also, it doesn't have a box. If photo 1 is the front, then photo 2 is the back. It's a rare inkstone that can be enjoyed on both sides. There is a chip on the left side of the front, but it's not very noticeable. Thank you.