DESCARTES, René (1596-1650). Prinicpi della Filosofia, Turin: Francesco Mairesse, 1722, 4° (236 x 176mm.), engraved portrait frontispiece of Guiseppa Eleonora, woodcut illustrations, some full-page (outer margin of frontispiece closely shaved, some leaves browned and spotted, light marginal dampstaining, small wormholes to margins of last few leaves), modern vellum.