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A facsimile reproduction of René Descartes' personal closing and signature in seventeenth-century cursive script.
Descartes often signed his name as "Des Cartes" in two words, reflecting the noble origins of his family name (of the "Cartes").
Etienne Charavay (1848–1899) was a prominent French historian, collector, and expert in autographs; his contribution indicates this is a scholarly 19th-century edition.
Discourse on the Method (1637): Descartes' landmark work introducing his philosophical and scientific system. Metaphysical Meditations (1641): A foundational text of modern philosophy where Descartes seeks to prove the existence of God and the immortality of the soul through reason. Autograph: A person’s own signature or handwriting.