Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1870
1872
1853-1857
1610; 1923
circa 1871
1847-1848
1862
1846
1834-1836
1853-1857
1850-1860
1875
1849
1862
1873
1860
1871
circa 1861
1874
1869
1839 (original); circa 1988 (replica)
1860
1775-1799 (original); 1900-1907 (model)
1874
circa 1848
1870
1850
1870
1864
1851
1862
1848
1858
1858
1878
1858
1858
1866-1870
1866-1870
1990-96
1850-1857
1934
1772 (original); 1919 (model)
1875
1857
1855
1858
1872