
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1879
1853-1857
1870
1878-1879
1862
1847-1848
circa 1846
1872
circa 1880
1830 (original); 1967 (model)
1845-1855
1846
1860s
1875
1879
1866
1801-1840 (original); 1901 (model)
circa 1868
1860
1851
circa 1871
1857-1870
1876
1845-1855
1858
1860
1865
1873
1862-1863
1855
1851
1849
1853-1857
1850-1860
1858
1775-1799 (original); 1900-1907 (model)
1869
1874
1849
circa 1848
circa 1880
1878
1844
1845-1855
1864
1668; 1924
1871
circa 1868