This is a jar (without a lid) that was found in the storage closet at my parents' house. I don't know the kiln it came from. It seems to have been used very little, so there are no noticeable stains, but please understand that it is a home-stored item. The size is approximately 26cm in height, 26cm in outer diameter at the opening, and 22cm in inner diameter. I haven't measured the capacity, but based on its size, I believe it's a size 3.