
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1870
1853-1857
circa 1861
circa 1846
1872
1862
1875
1849
1847-1848
1853-1857
1830 (original); 1967 (model)
1846
1862-1863
circa 1871
1845-1855
1850-1860
1873
1860
1844
1870
circa 1848
1874
1860
1874
1869
1839 (original); circa 1988 (replica)
1858
1844
1850
1775-1799 (original); 1900-1907 (model)
1871
1642-1649 (original); 1883 (model)
1858
1857
1858
1668; 1924
1848
1862
1845-1855
1851
1845-1855
1868
1990-96
1866-1870
1610; 1923
1875
1846
1870