
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1839 (original); circa 1988 (replica)
1940
1935
1935
1943
1935
1930-1940
1931
1930
circa 1930
circa 1942
1928
1927
circa 1930
1935
1940
circa 1938
1938
1938
1934
1937
1931
1942
1927
1937
1944
1933
1938 and 1951
1928
1936
1929-1935
1931
2000-100 BCE
Before 1932
before 1928
1940-1944
1938-1940
1943
1932
1930-1931
1937-1937
1942
1937-1938
1937-1938
1928
1931
1942
1933
1932-1942