Based upon an analysis of the so-called Mahdi A manuscript of Alf Layla wa Layla—preserved in the Bibliotheque Nationale—and the wider context of Mamluk numismatic history, Schultz explores what this version of the famous collection of stories can tell us about coinage in the Mamluk Sultanate. He first revisits the debate over the date of this manuscript’s transcription. While Muhsin Mahdi concluded that this manuscript was transcribed in eighth/fourteenth century, Heinz Grotzfeld argued that the manuscript was a ninth/fifteenth century product. Grotzfeld based his conclusion on the basis of the mention in the manuscript of gold coins known as “ashrafi ” dinars, and he identified these coins as those dinars struck in 829/1425 during the reign of sultan al-Ashraf Barsbay. Schultz demonstrates how the numismatic evidence overwhelming supports the later date, while also allowing for a date of transcription slightly earlier than the mid-century date favored by Grotzfeld. The second part of the essay gives multiple examples of how the language of money and commercial transactions found in several stories help corroborate other interpretations of monetary circulation in medieval Egypt and Syria.