
Engraving: Watt's first experiment of steam. By James Scott after R.W. Buss
1849
1849
1955; 1830
1842
1830-1850
1846
1850-1890
1860
1870-1880
1842
1862
1848
1858
1875
1850
circa 1860
circa 1861
1835
1847
1834
1829
1845-1855
1832
1865
1875
1845
before 1889
1867
1867
1885-1894
before 1889
About 1890
1890
1859
1842
1856
1875-1890
1861
1861
1888
1879
1876
1878
1858
1894
1872-1880
1855
1856
1867
1865-1866
1848-1852