
model locomotion no 1
1825
1825
1826
1808
1808
1809
1829
1807
1815
1815
1810-1817
1807
1821
1812
1830
1807
1812
circa 1808
1807
1814
1816
1815-1825
1806
1820
1955; 1830
1807
1812
1826
1815
1893-4
1863-7
1808
1829
2000-100 BCE
1813
1820-1830
1810-1830
circa 1810
1826
1808
1815-1825
1830
1826
1830
1829
1821
1830
1990-96
1828
1820
1823