Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1872
1872
1610; 1923
1860
1870
1862
1866-1870
1886
1866-1870
1801-1840 (original); 1901 (model)
1705-1737
1886
1870
1862
circa 1880
1868
circa 1885
1870
1876
1874
1866
1865-1877
1875-1885
c1860
1884
1875-1885
1873
1870
1865-1875
1865-1866
circa 1860
circa 1860
1865
1865
1870-1877
circa 1863
1875-1878
circa 1861
1893-4
1884
1864
1879
circa 1880
1875
1864
1876
1860-1877
1870-1881
1870-1877