The Rare Books department at the Free Library of Philadelphia owns a deluxe manuscript of Sa'di's Kulliyat, originally produced in mid-sixteenth century Shiraz and substantially modified in more modern times. Among the alterations was the insertion of a copy of the famous Timurid painting “Humay and Humayun in a garden”, belonging to the Musée des Arts Décoratifs, Paris. The Philadelphia version of the Paris painting was likely based on either a published reproduction or a photograph taken of the original composition when it was on view at the ground-breaking 1910 exhibition “Meisterwerke muhammedanischer Kunst” in Munich. That photographic reproductions could result in pictorial replicas reveals once again the market forces behind the great interest in, demand for, and production of classical Persian painting during the early twentieth century.