ISLAMIC ART. TALISMAN Indo-Persian amulet, round, with braced edge in spinach-green jade edged with mother-of-pearl cabochons set in gilded fillets, the centre adorned with a patinated metal plate engraved with calligraphy in Thuluth taken from the Qur'an 'There is no god, Allah and Mohammed are his prophets' (Small chip at the clasp). D. 3.5 cm