Watt's second separate condenser, 1765.
1765
1765
1962
1962
1670-1699
1999
1871-1900
1914
1797
1830
1797
1936
1800-1900
1992
1874
1871-1900
1914-1918
1850-1920
1981-1984
1970-2000
1831-1870
1931-1970
2018-2021
2018-2021
1832-1900
2018-2021
1700-1799
1700-1799
1797
1850-1900
1850-1900
1880-1889
circa 1895
circa 1897
1801-1865
1890-1910
1934-03-27
1934-03-27
1861
1873-1876
1873-1876
1873-1876
1873-1876
1900-1933 (model); 1869 (original)
1960-08-11
1962
1962
1935-11-30
circa 1896