I haven't used this dish much because I haven't made any food that goes well with it, so I've been storing it. I inherited it from my parents, and I don't know when it was purchased. Diameter: 13 cm, Height: 5 cm Since gold is used, I think it's best not to use it in the microwave. I searched the kiln mark on the bottom with AI, and it suggested that it might be Kiyomizu-yaki from Kyoto, but I'm not sure because I don't know much about it.