A prayer book in the Walters Art Museum copied by the same calligrapher is dated to AH 941/1534-35 AD, (inv. MSW.579). The colophon of the prayer book states that it was copied in Astarabad, present-day Gorgan in North East Iran. It also states that Sheikh Kamal was the calligrapher as well as the illuminator for that manuscript. The illumination on our ufradatnama and that on the prayer book are remarkably similar, which suggests that Sheikh Kamal was also responsible for the illumination on our copy.