
A steam hammer at work
1871
1871
1879-1896
1990-96
1914-1918
1886
1890 - 1900
1904
1879
1920
1910-1920
1870-1910
1875
1873-1923
1884
1901
1877
1910
1922
1900
1955; 1830
1914
1895
1896
1870-1880
1870-1910
1875
1892-1902
circa 1897
1904-1914
1901
1898
1906
1901
1902
1896
1906
1875
before 1889
1910
1920-1925
1885-1894
1895-1905
before 1889
About 1890
1890
1917
1910
1887-1903
1907-1917
1925