Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1929
1834-1836
1928
1934
1925-1930
circa 1925
1839 (original); circa 1988 (replica)
1926-1932
1925
1925-1926
1927-1928
1990-96
1933
1926
1934
1929
1927
1926
1927
1931
1931
1934
1903 (original); 1982 (model)
c. 1933
1930
1925
2000-100 BCE
4000-2001 BCE
1925
1934
1927-30
1931
1928
1926
1930-1932
1930-1931
1925-1930
1955; 1830
1930
1933
1925-1930
1925-1928
1925
1930
1931
1932
1926-1928
1934
1926-1934