model locomotion no 1
1825
1825
circa 1840
1837
1826
1840
1842
1842
1837
1833
1827
1837
1934
1834
1834
1834
1835
1825
1836
1825-1835
2000-100 BCE
1893-4
1841
1863-7
1837
1834-1844
1837
1838
1831
1839
1843
1841
1955; 1830
1844
1844
1835
1840
1842
circa 1832
1837
1831
1838
1839
1829
1837
1832
1826
1838
1826
1839
1775-1799 (original); 1900-1907 (model)