
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1936
1935
1936
1935
1930
circa 1930
1931
circa 1930
1935
1934-1935
1932-1936
2000-100 BCE
1927
1931
1930-1931
1928
1934
1937
1937
Before 1932
before 1928
1932
1935
1935
1926
1932
1933
1938
1938
1938
1938
1928
1934
1936
1932
1955; 1830
1927
1938 and 1951
1937-1937
1937-1938
1937-1938
1938
1938
1935
circa 1938
1935
1927
1933
1936