General–Charte von Livland, 183619th century, 4 decade, Map of Lithuania/Poland description General–Charte von Livland Carl Gottlieb Rücker (cartographer) – C. A. Klug (publisher).Dorpat , based on geodetic surveys by F. G. W. Struve, 1816–1819. See his 1839 map of “Livland.” Year 1836 Author Carl Gottlieb Rücker Sources http://www.muuseum.ut.ee