
Swan electric lamp
1878-1879
1878-1879
1879
1879
1875
1874
1775-1799 (original); 1900-1907 (model)
1839 (original); circa 1988 (replica)
1879
1877
1878
circa 1880
1934
1879
1875
1875
1876
1878
1875
1879
1955; 1830
1879
1893-4
1880
2000-100 BCE
1876
1872 (original); 1909 (model)
1880
circa 1880
1990-96
1880
1879
circa 1880
1879
1878
1888
1875-1877
1934
1878
circa 1880
1930 (replica); 1834 (original)
1874
1880
1877
1876
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1875
1705-1737
1879
1878