
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1770
1780-1850
1801-1830
1862
1877-1897
1860
1839 (original); circa 1988 (replica)
1870
1712-1713
1897-1898
1801-1900
1885
1783-1800
1875
circa 1900
1872
1738-1777
1799-1802
1831
1701-1800
1777-1785
1801-1900
1701-1800
1744-1774
1870
1831
1874
1869
1846
1874
1858
1849
1760-1775
1889
1847-1848
circa 1842
1880-1900
1853-1857
1701-1800
1801-1900
1879-1896
1829
1801-1899
1775
1801
1751-1800
1066; 1876
1888