Light-bulb, filament, carbon
About 1890
About 1890
circa 1897
1895
1890
1896
1895
1896
1896
1896
1890
1892
1872 (original); 1909 (model)
1955; 1830
1894
1890-1894
1892
1890-1894
circa 1890
circa 1890
circa 1890
circa 1890
1890
2000-100 BCE
1890-1896
1893-4
1934
1890-1894
1897
1896
1890
1990-96
1893
1897
1894
1897
1893
1897
1930 (replica); 1834 (original)
1897
1801-1892 (prepared); 1946 (element replaced)
1895
1897
1894
1897
1896
1891
1705-1737
1772 (original); 1919 (model)
1830 (original); 1967 (model)
circa 1890