
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1839 (original); circa 1988 (replica)
1940
1938
1938
1938
1935
1938
1940
1928
1932
1955; 1830
1936
1935
1945
1932
1926
1925-1928
1934
1940-1945
1946
1940
1943
1935-1945
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
1930-1931
1942
1925-1935
1942
1939-1945
1937
1931
1931
1946
1942
1927
1937