
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1839 (original); circa 1988 (replica)
1940
1938
1947
1938
1948
1938
1935
1938
1940
1928
1950
1932
1955; 1830
1950
1936
1935
1945
1932
1926
1925-1928
1934
1940-1945
1948
1946
1949
1940
1943
1948
1935-1945
1940-1950
1935
1927-1929
1930-1940
1935
1938 and 1951
1929-1935
1925-1935
1926
1936
2000-100 BCE
Before 1932
before 1928
1940-1944
1932
1930-1950
1930-1931
1942
1941-1950