A bonsai pot created by Akiji Kataoka, crafted from a grayish clay with a rough texture called "ara," a term that refers precisely to its irregular, tactile surface, which lends depth and character to the piece. This variety of ara is known as wood grain. Its surface reveals natural grain patterns, as if the clay itself had absorbed the memory of an ancient tree trunk, evoking the organic imprint of time on the material.
The Yamaaki kiln was founded in 1920, making it one of the oldest contemporary workshops in Tokoname. Its founder, Akiji Kataoka, established a ceramic tradition that would endure for generations. After his death in 1990, his sons, Sadamitsu Kataoka (known artistically as Koshōsen) and Toshio Kataoka, continued the family kiln's operations. Akiji Kataoka signed his works with the artistic name Jūōdō (Juodo) Shōsen, though he is more commonly known simply as Shōsen.