Engraving: Watt's first experiment. Marcus Stone ARA pinxt; Herbert Bourne sculpt; published by Appleton & Co
1879
1879
1876
1878
1882
1875
1870
1878
1875
circa 1868
1875
1871
circa 1880
1875
1870-1880
1872-1880
1893-4
1867
1867
2000-100 BCE
1879
1934
1870-1881
1867
1879
1867-1868
1877
1870-1875
1872
1879
1872 (original); 1909 (model)
1955; 1830
1876
1872
1878-1879
1870-1880
1870s
1870-1880
circa 1871
1869
1880
1882
1888
1878
1875-1877
1879
1878
1880
1880
circa 1880
1868