Persimmon-Shaped (Kaki-ai) Go Stone Casket (Goishi Natsume) Artist: Unknown The lid has "Waraku" (Harmony and Joy) written in red. The underside of the lid has a kao (signature mark), but it is unknown whose it is. (It slightly resembles Sankei's kao) Wooden Box: Approximately 9.5cm x 9.5cm Height: Approximately 9cm Go Stone Casket: Body Diameter: Approximately 7.5cm Mouth Diameter: Approximately 7cm Lid Diameter: Approximately 7cm, Thickness: Approximately 1cm I purchased this at the Kobo-ichi market at To-ji Temple in Kyoto about forty-odd years ago, and it has been stored away ever since. When I bought it, I asked the antique shop owner "Whose kao is this?" He replied, "Because I don't know, it's this price." I will sell it to someone who appreciates it.