Fragment of an itahi, commonly referred to as an aoishitoba (lit. blue-stone stupa), sculpted from an iron-rich blue-green schist, the bonji (Sanskrit character) symbolizing Amida Buddha deeply incised onto the front surface. Kamakura/Nanbokucho Period ca. 1300. Loss of lower portion.
Height: 49 cm
Width: 26 cm
Thickness: 3 cm
The earliest extant examples of stone itahi date to the mid-Kamakura Period ca. 1250, while the most recent examples date to the first decade or so of the Edo Period ca. 1615, after which time the production of stone itahi ceased. Judging from its relatively large width and deeply incised bonji, this itahi almost certainly dates to the late-Kamakura or Nanbokucho Period.
Hewn from a rarely seen teal-hued schist, this itahi is an especially desirable example of type.