Identical text on all three examples, two dated 1297 (1879-80 AD) and one 1301 (1883-4 AD)
farmayesh-e hazrat-e as’ad-e amjad-e arafa’-e ashraf-e vala soltan mas’ud mirza yamin al-dawla zill al-soltan
‘Commissioned by His Excellency, the Auspicious, the most Glorious, the Most high, the Most noble, the Eminent Sultan Mas’ud Mirza Yamin al-Dawla Zill al-Sultan’
A plate in the Asian Art Museum, San Francisco (inv. no.1999.40) features the same design and date as two of these bowls, indicating that it may have belonged to the same set commissioned for Mas’ud Mirza Zill al-Sultan of Persia, with a porcelain body associated with the Qing dynasty in China. One of these bowls, of a slightly later date, was probably from the same production line, testifying to the enduring popularity of this set.
For a full bibliography of Zill al-Sultan, see: M. Bamdad, Dictionary of National Biography of Iran, 1700-1900, vol. 4, Tehran, 1966, pp. 78-100.