E-Shino Chawan Tea Bowl | Showa Studio | Mountain Landscape Iron Underglaze | Mino

In the autumn of 1513, a potter working in the kilns of Mino province (美濃, present-day Gifu Prefecture) did something that had never been done before in Japan: he ground chōseki (長石 — feldspar) into a thick slip and applied it to a clay body as a glaze. The result was white — Japan's first indigenous white glaze, achieved without Chinese materials or Chinese technique. He called it, or his descendants called it, Shino (志野). The name's origin is uncertain; the achievement is not. For a ceramic culture that had always looked to China for white, this was a revolution.

E-Shino (絵志野 — picture Shino) takes this further. Before the thick feldspar glaze is applied, the potter paints directly onto the raw clay body with iron oxide (鬼板, onita — a manganese-iron pigment). The glaze goes on top — opaque, white, three to five millimeters thick. The painted image does not disappear; it is seen through the glaze, as if submerged, softened, held in suspension between clay and surface. The effect is unlike any other ceramic tradition in the world.

This chawan (茶碗 — matcha tea bowl) carries that technique with authority. The exterior decoration is a gestural mountain landscape — bold, abbreviated brushwork in iron-brown that reads as peaks rising from ground, with scattered marks below suggesting water, reeds, or mountain grasses. The brushwork is confident and economical: a few strokes achieve what a more careful hand could not. The Shino glaze covers the body in its characteristic thick white, with fine kan'nyū (貫入 — craze lines) mapping the entire surface — the inevitable result of the glaze's coefficient of expansion diverging from the clay's as it cools, an aging process that begins at the kiln and deepens over decades of display and use. The interior is fully glazed in the same milky white, slightly pooled at the base. The rim is organic and irregular — hand-shaped, not wheel-finished — consistent with the momoyama-bi (桃山美 — Momoyama aesthetic) of deliberate imperfection.

The base reveals coarse Mino-type clay: sandy, iron-speckled, pale tan — the same clay used in the Momoyama originals. A small glaze drip at the foot ring is a natural artifact of the thick Shino application. No signature or kiln mark is present; the piece speaks entirely through its material and its brushwork.

For the tea ceremony practitioner, an e-Shino chawan in the classic mountain-landscape tradition is among the most resonant objects one can hold during fukusa sabaki (袱紗捌き). For the collector, it is a piece that participates in one of Japanese ceramics' great unbroken conversations — from the Momoyama kilns through the Showa revival of Arakawa Toyozō and forward.

Very good condition. Glaze intact; crazing is natural and age-appropriate. No chips or repairs. Studio piece, Showa period, c. 1960–1990