
'Haystack' Boiler, 1775-1799
1775-1799 (original); 1900-1907 (model)
1775-1799 (original); 1900-1907 (model)
circa 1842
1846
1830 (original); 1967 (model)
1832
1840
1835
1848
2000-100 BCE
1840
1934
1850
circa 1840
1842
1850
1846
1837
1849
1840-1850
1851
1849
1843
1955; 1830
1893-4
1844
1844
1849
1845-1851
1846
1841
1851
1838
1837
1835-1845
1863-7
1850
1851
1833
1836
1842
1835
1838
1837
1837
1847
1834
circa 1832
1840-1851
1839
1850