The two men playing the long Shukuhachi or flutes --- I am really not sure what they are. Perhaps a customer could help? Are they tomb gods? To play music in the afterlife? Are they Japanese? Ainu? Chinese? Korean? I have found works of art from all such countries inside Japan, and collected, and sold them, but still think that, being associated in a collected with the Zou and the Baku, that they SHOULD be Japanese... but they are so unlike anything I have had before I cannot say more just yet.