This is a "Silk Road Landscape Octagonal Bowl" by ceramic artist Yusuke Miyazaki. It's a popular piece by an artist whose work is inspired by the Silk Road, and it appears to have been created in 1993. It is a long-term storage item that has never been used. Size: Approximately 17.3 cm in diameter, 5.7 cm in height. The plate stand in the image is not included.