Replica of the first Morse telegraph, 1835
1934
1934
circa 1861
1893-4
1862
2000-100 BCE
1863-7
1955; 1830
circa 1861
1862
1990-96
1934
1930 (replica); 1834 (original)
1862
1705-1737
1870-1877
1772 (original); 1919 (model)
1801-1840 (original); 1901 (model)
1830 (original); 1967 (model)
1775-1799 (original); 1900-1907 (model)
4000-2001 BCE
1862
1888-185
1871-1830
1862
1862
1862
1862
1862
1863
1863
2000-1350
1883-01
1972-3
1945-50
1861
1990-95
1863
1863
1862
1870-10
1863
1863
1861
30 CE
30 CE
1859; 1986
1861
3500-1000
circa 1862
circa 1862