
Edison telephone, 1879
1879
1879
1879-1896
1875
1877-1897
1885
1898
1889
1884
1897-1898
1884-1900
1830 (original); 1967 (model)
circa 1900
1872
1880-1900
1872
1895
1896
1900
1886
1885-1894
1872
1879
1876
1878
1894
1895-1900
1899
1890-1894
1898
1892
1897
1876
1880-1890
1872 (original); 1909 (model)
1875
1898
1892
1884
circa 1885
1898
1899
1879
1897
1889
circa 1900
1878-1890
1878-1890
1878-1890
1878-1890
1890-1894