Late 18th or early 19th century AD. A tomb cover piece bearing a written text executed in couched silver thread; the text a famous prayer verse from the Qur'an called Ayyat al Kursi; mounted in a perspex display case. 9.3 kg total, 88cm wide including case (34 1/2"). From an important London collection; acquired on the UK art market 1971-1974. Fine condition.