
'Haystack' Boiler, 1775-1799
1775-1799 (original); 1900-1907 (model)
1775-1799 (original); 1900-1907 (model)
1849
1830 (original); 1967 (model)
circa 1842
1846
1840
1848
2000-100 BCE
1840
1934
circa 1840
1842
1849
1842
1845
1845
1845
1842
1841
1955; 1830
1846
1849
1839
1849
1843
1847
1841
1893-4
1838
1844
1844
1863-7
1849
1842
1838
1839
1840-1845
1846
1839
1846
circa 1840
1840
1838
4000-2001 BCE
1846
1934
circa 1848
1839 (original); circa 1988 (replica)
1849
1844