PONCELET, Jean Victor (1788-1867). Traité des Propriétés Projectives des Figures. Paris: Bachelier, 1822. 4°. Half title, 12 folding engraved plates at the end (variable spotting throughout). Contemporary calf-backed boards (rubbed, joints split). Provenance: Russian library stamps. FIRST EDITION. "This work ... contained many extremely important innovations, ideas, methods, and original results, and it played a decisive role in the development of projective geometry in the nineteenth century" (DSB, XI, p.77).