The kiln where I purchased this is unknown, but the mark on the back appears to be "た". I believe I bought it because I was attracted to the beautiful patterns, crackling, and chic colors. I probably purchased it around 1993 to 1995. Please note that this item is not recommended for those concerned about long-term home storage, so please check the images and purchase with your understanding. Recycled materials such as cardboard and newspapers will be used for packaging. There is no box, but it will be carefully packed and delivered. Diameter: 15cm