This article provides a transcription and analysis of a newly located fragment of Kant’s autograph fair copy of his essay on Perpetual Peace. The 4-page manuscript is part of the John Wild Autograph Collection at Princeton University (USA) and constitutes the immediate sequel to a similar fragment preserved in the Staatsarchiv Hamburg and published in Kant-Studien 77 (1986). The Princeton fragment was not included in volume 23 of the Akademie-Ausgabe and was unavailable to recent editors; it presents a number of textual variants and allows new insights into Kant’s writing process.