
Swan electric lamp
1878-1879
1878-1879
1879
1875
1880
1879
1775-1799 (original); 1900-1907 (model)
1879
2000-100 BCE
1934
1880
1879
1878
circa 1880
1875
1877
1955; 1830
1872
1893-4
1876
1872 (original); 1909 (model)
1882
1879
1876
1878
1872-1880
1875
1875
1872
1879
1872
1872
circa 1880
1888
4000-2001 BCE
1934
1872
1839 (original); circa 1988 (replica)
1874
circa 1880
1879
1772 (original); 1919 (model)
1873
1876
1990-96
1875-1878
circa 1880
1877
1878
1875-1877
1875-1880