Edison telephone, 1879
1879
1879
1879
1876
1878
1879
1882
1867-1868
1875
1877
1870
1878
1870-1875
1872
1875
circa 1868
1872 (original); 1909 (model)
1955; 1830
1875
1872
1871
1878-1879
1870-1880
circa 1871
1869
1867
1867
circa 1880
1934
1870-1881
1867
1872-1880
1870-1880
2000-100 BCE
1876
1893-4
1870s
1879
1870-1880
1875
1877
1880
1882
1705-1737
1872
1888
1880
1876
1878
1875-1877
1879