Light-bulb, filament, carbon
About 1890
About 1890
1875
1882
1865
1870
1878
circa 1868
1884
1888
1890
circa 1880
1875
1884
circa 1885
1875
1886
1890
1865-1866
1875
1870-1890
1885
1870-1880
1886
1869
1884
1878-1890
1880-1890
1865
1878-1890
1878-1890
1866
1878-1890
1878-1890
1878-1890
1865
1867-1868
1877
1870-1875
1879
1872 (original); 1909 (model)
1955; 1830
1876
circa 1885
1871
1878-1879
1889
1870-1880
1870-1880
1870-1881
1876