Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1929
1834-1836
1928
1934
1926
1930 (replica); 1834 (original)
1839 (original); circa 1988 (replica)
1926-1932
1927-1928
1927
1933
1926
1934
1929
1927
1926
1931
1931
1934
c. 1933
1930
1930 (replica); 1834 (original)
1930
1927-30
2000-100 BCE
4000-2001 BCE
1927
1931
1934
1928
1926
1930-1932
1933
1930-1931
1930
1930
1931
1932
1926-1928
circa 1930
1934
1926-1934
1931
1926
1928
1930-1932
1927
1930
1928