
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1879
1870
1878-1879
1862
1872
circa 1880
1830 (original); 1967 (model)
1875
1866
1879
1801-1840 (original); 1901 (model)
circa 1868
circa 1871
1865
1873
1876
1862-1863
1869
1874
circa 1880
1878
1775-1799 (original); 1900-1907 (model)
1864
1668; 1924
1871
circa 1868
1870s
1610; 1923
1870s
1874
1879
1875
1877
1870
1878
circa 1868
circa 1861
circa 1880
1875
1870-1880
1865
1867
1867
1863-1865
1861
1861
1876
1878