The name Rikyu Marutsubo derives from its illustrious owner Sen Rikyu. Later it passed through many hands, acquiring a number of accompanying items. Among them is an elaborately lacquered hikiya, which itself is protected in a leather bag. The leather bag is stored in a box with cushions on all sides. In turn, this box sits protected in the same manner in a thick copper box equipped with locks and handles for transport. Clearly, the chaire’s owners were attempting to protect it from every conceivable disaster.