The small ceramic case with a dome-shaped lid resting on a small circular stand is for storing incense. Beautiful kōgō are used for presentation in the tea ceremony, after the incense is placed in the charcoal brazier during the sumitemae 炭手前 ('charcoal arranging').
Taniguchi Ryōzō is an important ceramicist who revitalized contemporary Japanese pottery. He was an apprentice to Kiyomizu master potter Rokubei 六兵衛. Taniguchi Ryōzō's works are hold in the Imperial Collection and were, for instance, on display during official meeting of the emperor such as between Hirohito and the prince and princess of wales, Charles and Diana in 1986.