The manuscript from which this beautiful leaf originates is a collection of Qur'an suras rather than a complete Qur'an. Such albums which must have served as prayer books are relatively common, though usually of smaller format (see lot 3).
The colophon page of this manuscript, in a private collection, is signed by the calligrapher in a medallion in the margin: copied by the weak slave who implores the Lord's mercy, Abu Muhammad Abd al-Qayyum ibn Muhammad ibn Karamshah al-Tabrizi (Soudavar,A.:Treasures of Islam, New York, 1992, pp.50-1)
It has been suggested that the manuscript was copied in Baghdad at the court of the Jalayrid prince Sheikh Oveys, a considerable patron of the arts, in around 1370. (Soudavar op.cit.)
Other published folios have been attrtibuted to Iran or Iraq in the years between 1350 and 1420 (von Folsach, K. ed.: Sultan, Shah and Great Mughal, Copenhagen, 1996 p.145).