Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1801
1770
1771-1830
circa 1832
1872
1853-1857
1610; 1923
1847-1848
1791
1849
1860
1800-1820
1842
1821
1738-1777
1820
1775-1785
1840-1851
1805
1801-1838
1760-1775
circa 1800
1870
1840
1735-1745
1862
1840
1858
1797
1785
1799-1802
1866-1870
1866-1870
1763
1857
1801-1840 (original); 1901 (model)
1705-1737
1851
1801-1823
1844
1790-1831
1761-1762
1833
1820
1784
c.1750
1852
1870