This cartouche‑shaped plaque was created from a single sheet of solid steel, whose wide, flat border encloses a hemistich referring to Fatima and her sons. The text is part of a versification of the names of the chahardah ma'sum, or the fourteen infallible ones (the Prophet, Fatima, and the twelve imams). Such plaques, which served both a decorative and invocative function, were often set in the doors of shrines, mosques, and theological schools.
