
Replica of the first Morse telegraph, 1835
1934
1934
1879
1880
1886
1875
2000-100 BCE
1875-1885
1876
1880-1890
1880-1890
1872 (original); 1909 (model)
1875
1880-1889
1889
1872-1880
1872
1880
1880
circa 1880
1772 (original); 1919 (model)
1890
1873
circa 1880
1889
1990-96
1884
1885
1879
circa 1890
circa 1890
circa 1890
1801-1840 (original); 1901 (model)
1830 (original); 1967 (model)
1876
1878
1877
1839 (original); circa 1988 (replica)
1889
1874
1880
1930 (replica); 1834 (original)
1873
1872
before 1889
1890
circa 1880
1884
1875
1705-1737
1875-1890