Rotative Compound Beam Engine, 1881
1968-1971
1968-1971
1979
(1962); 1982
1968
1976
1972-1977
1974-1977
1979
1977
1970
1976
1977
1970
1977
1971
1970
1972
1971
1975
1969
1968
circa 1969
1976-1979
1980
1975
1977
1969
1973
2000-100 BCE
1970-1980
1974-1976
1970-1979
1968
1976
1980
1969
1970-1980
1970-1980
circa 1975
circa 1972
1975
1979
1978
1968
1969
1969
1968
1971
1978
1970-1972