539912 Observation of whirlpool galaxy in Canes Venatici, from \'Observations of Nebulae\', by Lord Rosse, published in London, 1850 (engraving) by English School, (19th century); Private Collection; (add.info.: William Parsons, 3rd Earl of Rosse (1800-67). Observations of Nebulae and Clusters of Stars Made With the Six-foot and Three-foot Reflectors at Birr Castle From the Year 1848 up to the Year 1878.); Universal History Archive/UIG; English, out of copyright.