
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1931
1930-1931
1839 (original); circa 1988 (replica)
1936
1935
1830 (original); 1967 (model)
1903 (original); 1982 (model)
1990-96
1934-1935
1938
1938
1938
1935
1938
1932
1955; 1830
1935
1934
1937
1931
1937
1930
circa 1930
1935
1933
1936
1938 and 1951
1935
1934
1936
1934
1931
2000-100 BCE
Before 1932
1932
1937-1937
1937-1938
1937-1938
1931
1933
1938
circa 1930
1938
1936
1935
circa 1938
1938
1938
1935