This is a tea bowl by Oishi Tokuko. It was purchased by my mother, who was a teacher of the Urasenke school of tea ceremony. There are no noticeable scratches or stains, and I believe it is a very beautiful item. There is a small dent in one place, but it appears to have been there originally (please see the 7th photo). As this is based on my amateur assessment, please feel free to request detailed photos or other information. This is a used item that has been stored at home, so please understand this before purchasing.