
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1931
1930-1931
1839 (original); circa 1988 (replica)
1830 (original); 1967 (model)
1903 (original); 1982 (model)
1990-96
1928
1932
1955; 1830
1927-1929
1934
1931
1927
1930
circa 1930
1928
1927
1933
1928
1934
1934
1931
2000-100 BCE
Before 1932
before 1928
1932
1928
1931
1933
1927
circa 1930
1924
1927
1932
1926
1934
1926
1926
1930
1933
1930
1933
1931
1934
1926-1932
1926-1928
1927
1801-1892 (prepared); 1946 (element replaced)
1932-1933