Our Kutsu / gutsu gata ( shoe shaped ) tea bowl is made of iron bearing Karatsu clay.
Its fastly but expertly thrown body is glazed inside and outside, with the exception of the bottom including the roughly cut foot ring with an ash glaze which has some Feldspat mixed in glaze. The decoration under the glaze is painted in dark brown iron bearing clay directly on the body - flying birds.
To prevent the glaze from flaking off at the rim, iron oxide was painted under the glaze there. The glaze is uneven, with orange skin effect and pin holes, which is typical for early Edo products, when the output was high but the control of the kiln temperature was still difficult.
It is a masterpiece and reference chawan of the early 17th century and it was part of the Momoyama Ceramic Exhibition in Germany in 2011.
Of course it is published in a great book ( written in English / German with a text of Japanese Ambassador in Germany ), which is also available from us or online.
Diameter: 15.2 cm
Hight: 7.4 cm
Foot ring: 7.5 cm