This is a piece by Sachiko Kosuge. I purchased it about 10 years ago, but I haven't been able to use it much because I felt it was too precious. I think it's rare. Signed on the back. Please understand that this item has been stored at home. I'm looking for someone who appreciates the style and understands the nature of the work. Please refrain from purchasing if you are overly concerned about minor details. Keywords: Utensils, tableware Sachiko Kosuge, dishes Artist, artisan-made Mug Brooch