Various invertebrates (insects, worms, corals), chromolithograph, published in 1891 vector art illustration
Johannes Brahms (1833-1897), German composer, wood engraving, published in 1882 vector art illustration
Passeriformes: Magpie, grey-backed fiscal and blue tit, chromolithograph, published 1887 vector art illustration
Various plants (Moraceae, Vitaceae, Rosaceae, Amygdaleae), chromolithograph, published in 1891 vector art illustration
Flowering plants (Angiospermae), hand-colored wood engraving, published in 1887 vector art illustration
Edible and poisonous mushrooms, hand-colored wood engraving, published in 1887 vector art illustration
Robert Schumann (German composer, 1810-1856), steel engraving, published in 1889 vector art illustration
Nikola Tesla (1856-1943), Serbian-American inventor and electrical engineer, published 1898 vector art illustration
Wilhelm Conrad Roentgen (1845-1923), German physicist, halftone print, published 1900 vector art illustration
Wolfgang Amadeus Mozart, Austrian composer (1756-1791), wood engraving, published 1900 vector art illustration
Sir Herbert Stewart (1843-1885), British soldier, wood engraving, published in 1885 vector art illustration
Leonardo da Vinci (1452-1519), Italian polymath, wood engraving, published 1893 vector art illustration
James Watt's double-acting steam engine (1769), wood engraving, published 1882 vector art illustration
Historical view of Funchal, Madeira, Portugal, chromolithograph, published in 1890 vector art illustration
Flowering plants (Angiospermae, Gentianaceae), hand-colored wood engraving, published in 1887 vector art illustration
Bust illustration of Epicurus, a Greek philosopher, lithograph, published 1830 vector art illustration
Flowering plants (Angiospermae), hand-colored wood engraving, published in 1887 vector art illustration