This is a large Kinma bowl, a traditional craft from Thailand and Myanmar. It is made by hollowing out wood, applying black lacquer, and then drawing intricate patterns with lines. Living creatures leap between the patterns. This is an antique art craft. While it's unclear if it's a museum piece, it's not a roughly finished souvenir. Because it's made by hollowing out well-dried wood, it's very light to hold (souvenir items have rough patterns and are heavy and thick, so the difference is clear). A deep bowl from the 17th century with a similar style is housed in the Tokyo National Museum, so please take a look if you are interested. Below is part of the description from the Tokyo National Museum: "Kinma is a technique in which patterns are first carved into the surface of a vessel, then filled with colored lacquer, and after drying, polished. It is the most common lacquer craft technique in Thailand and Myanmar. Lacquerware from Thailand was brought to Japan through trade with Ayutthaya, and it is thought that the name Kinma was established at that time. Thai Kinma features continuous patterns of small flowers and various imaginary beasts in red on a black lacquer base." You can understand that this item perfectly matches this description. Diameter: Approximately 15cm Height: Approximately 7.5cm Weight: Approximately 145g