![](https://coimages.sciencemuseumgroup.org.uk/34/791/large_thumbnail_1934_0544.jpg)
Replica of the first Morse telegraph, 1835
1934
1934
1922
1921
2000-100 BCE
1955; 1830
1921
1990-96
1930 (replica); 1834 (original)
1830 (original); 1967 (model)
1922
1922
1903 (original); 1982 (model)
4000-2001 BCE
1934
1921
1801-1892 (prepared); 1946 (element replaced)
1839 (original); circa 1988 (replica)
c. 1922
circa 1922
circa 1922
1922
circa 1922
1953-4
1922
1921
1922
1922
1922
1970-1875
1922
30 CE
30 CE
2686-2613 BCE
1921
1922
1859; 1986
circa 1922
1945-50
1922
1922
1370-1350 BCE; 1931
1931; 250 BCE
1370-1350 BCE; 1931
1921
2000-1000
1922
1972-3
2500 BCE
1950-1920
1970-1910