During the eleventh and twelfth centuries, there was a tradition for talismanic objects and manuscripts, and surviving scrolls remain a rarity. For various metal talismans incised with magic squares and circles, see F. Maddison & E. Savage-Smith, Science, Tools and Magic, Part I, London 1997, p.138, nos.77-78, whilst a Mamluk scroll in a Malaysian private collection is published in Islamic Calligraphy - Sacred and Secular Writings, exhibition catalogue, 1988, p.98, no.22.