model locomotion no 1
1825
1825
circa 1840
1837
1826
1840
1837
1833
1827
1837
1934
1834
1834
1834
1821-1831
1835
1825
1836
1825-1835
2000-100 BCE
1893-4
1863-7
1837
1837
1838
1820
1831
1839
1955; 1830
1835
1840
circa 1832
1837
1820-1830
1831
1838
1822-1840
1839
1829
1837
1832
1826
1821
1838
1826
1839
1775-1799 (original); 1900-1907 (model)
1839
1990-96
1830
1830-1835