
Replica of Morse's second model of telegraphy apparatus, 1934
1934
1934
1889
1936
1990-95
1610; 1923
circa 1885
1834-1836
circa 1891
1891
1925; 1862
1890-1891
1890
1886
1890
1889
1885
1884-1886
1668; 1924
1960-1979
circa 1890
1783; 1914
1886
1890
1886
1890
1886
1886
1884
1891
1886-1890
1891
1887
1888
1886
1884
1884
1892
1891
1887
1886
1892
1890
1886
1888
1825; 1910
1891
1890
1892
1884
1890