
Babbage's Analytical Engine, 1834-1871. (Trial model)
1871
1871
1879
1903
1862
1877-1897
1860
1900-1910
1905
1895-1904
1839 (original); circa 1988 (replica)
1870
1897-1898
1885
1952-3
1875
circa 1900
1872
1900-1910
1870
1874
1869
1900-1910
1907
1874
1889
1880-1900
1907
1879-1896
1066; 1876
1903
1888
1878-1879
1872
1902
1910
1910
1887-1903
1875-1890
1861
1861
1860-1900
1901-1910
1872-1880
1934
1902-1907
1896
1879
1864-1900
1890-1910
1870-1890