Published Catalogue Text: In Harmony: The Norma Jean Calderwood Collection of Islamic Art , written 2013
29
Bowl with radial foliate design
Iran, Seljuk-Atabeg period, 12th–13th century[1]
Fritware painted with luster (copper and silver) over white lead alkali glaze opacified with tin
9 × 21.7 cm (3 9/16 × 8 9/16 in.)
2002.50.103
Published: McWilliams 2002b, 44, fig. 4; McWilliams 2003, 243–44, fig. 23.
Luster painting on ceramics provided a metallic golden sheen, first on earthenware from ninth-and tenth-century Iraq (see cats. 4–7) and later on fritware from Iran, where it was used to great effect from the twelfth to the fourteenth century. The luster, applied after the first firing of a glazed tile or vessel, consisted of oxides of copper and silver. Different concentrations of these metals, in addition to variations in the reducing atmosphere of the kiln during the second firing, resulted in tones ranging from reddish to yellowish. In Iran, specifically in Kashan,[2] generations of potters produced exquisite ceramics in the luster technique. Due to the predominance of copper, the luster of these ceramics appears reddish.
The interior of this bowl is divided into eight equal sections by lines, embellished with dots and twining tendrils, that spring 189 from triangular arabesques and terminate with pairs of small, silhouetted birds toward the rim. Each section contains a palmette-filled pendant. Around the rim runs an angular pseudo-inscription. Paired lines divide the exterior of the bowl into sections, which are filled with loosely painted scrolls.
The twining tendrils and the palmette-enclosing pendants on the interior of this bowl are very common in Persian lusterwares. The bowl is intact, and the quality of its luster is remarkable. The white glaze does not cover the foot, which the potter would have held when dipping the vessel into the glazing compound before firing.
Ayşin Yoltar-Yıldırım
[1] The bowl was last fired between 600 and 1000 years ago, according to the results of thermoluminescence analysis carried out by Oxford Authentication Ltd. in 2003.
[2] For the attribution of Seljuk-Atabeg Persian lusterware to Kashan, see Watson 1985, 37–44; Mason 2004, 140, 164.