
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1770
1780-1850
1801-1830
1862
1860
1839 (original); circa 1988 (replica)
1870
1885
1783-1800
1875
1872
1799-1802
1777-1785
1831
1870
1831
1858
1874
1869
1849
1760-1775
1889
1853-1857
1847-1848
1846
1874
circa 1842
1829
1775
1801
1751-1800
1066; 1876
1888
1878-1879
circa 1832
1872
1788
1845-1855
1832
1845
1762
1798
1755
1842
1856
1875-1890
1861
1861