This bowl is a fine example of the so-called 'Sultanabad' wares which were produced during in the Ilkhanid period. This type is characterized by a distinctive glaze, incorporating fine underdrawing in black or grey-green, often combined with cobalt and turquoise accents.
Textile Museum, Washington (until 1970; sold to MMA)
Museum für Islamische Kunst, Pergamonmuseum, Staatliche Museen zu Berlin. "The Arts of Islam. Masterpieces from the M.M.A.," June 15, 1981–August 8, 1981, no. 34.
"Masterpieces from The Metropolitan Museum of Art New York." In The Arts of Islam. Berlin, 1981. no. 34, pp. 98-99, ill. p. 99 (b/w).