
'Haystack' Boiler, 1775-1799
1775-1799 (original); 1900-1907 (model)
1775-1799 (original); 1900-1907 (model)
1794
1798
1797
1795
2000-100 BCE
1791
1790
1796
1794
1792
1795
1790
1795
1795
1790
1792
1792
1790
1799
1796-1797
1796-1798
1790
1990-96
1794
1772 (original); 1919 (model)
1792
1791-1792
circa 1795
1705-1737
1791
1797
4000-2001 BCE
1791
1790-1794
1799
1795
1797
1799
1790
1797
1790-1794
1668; 1924
1990-95
1642-1649 (original); 1883 (model)
1610; 1923
1797
2050-1750 BCE
1960-1979
700 BCE; 1931