
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1878-1879
circa 1871
1870
1862
1879
1872
1860
1866-1870
1879
1853-1857
1870
1858
1865-1877
1871
1875
1862
1853-1857
1868
1874
1862
before 1857
1775-1799 (original); 1900-1907 (model)
1871
1839 (original); circa 1988 (replica)
1873
1870
1860
1879
1877
1878
1860
circa 1880
1856
1861
1861
1872-1880
1934
1879
1861-1866
1882
circa 1868
1853
1865
1854
1875
1884
1870-1880
1858