3960932 Leonardo di ser Piero da Vinci, from Living Biographies of Great Painters by Ross, Gordon (1872-1946); (add.info.: Leonardo di ser Piero da Vinci, 1452-1519, aka Leonardo da Vinci or Leonardo. Italian Renaissance polymath: artist, sculptor, architect, musician, scientist, mathematician, engineer, inventor, anatomist, geologist, cartographer, botanist and writer. Illustration by Gordon Ross, American artist and illustrator (1873-1946), from Living Biographies of Great Painters.); American, out of copyright.