
'Haystack' Boiler, 1775-1799
1775-1799 (original); 1900-1907 (model)
1775-1799 (original); 1900-1907 (model)
circa 1842
1846
1830 (original); 1967 (model)
1840
2000-100 BCE
1840
1934
circa 1840
1842
1846
1837
1843
1955; 1830
1893-4
1844
1844
1846
1841
1838
1837
1863-7
1842
1838
1837
1837
1839
1842
1845
1837
1837
1845
1842
1837
1837
1840-1845
1841
1839
1845
1839
1846
circa 1840
1840
1838
4000-2001 BCE
1934
1839 (original); circa 1988 (replica)
1844
circa 1846
1772 (original); 1919 (model)