DA VINCI, Leonardo. A Treatise of Painting, London: J. Senex and W. Taylor, 1721. 8, engraved frontispiece portrait, title printed in red and black, 35 engraved plates, of which 4 are folding (occasional mainly marginal light spotting and browning, hinges weak, a few leaves at begining starting to detach), contemporary brown calf, blind-stamped with foliate pattern (worn, covers detached). FIRST ENGLISH TRANSLATION FROM THE ORIGINAL ITALIAN.