
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1923
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
1925
1928
1924
1927
1933
1928
1925
1923
1934
1924-1927
1934
1931
circa 1925
2000-100 BCE
Before 1932
before 1928
1932
1923
1925
1928
1931
1933
1927
1924
circa 1930
1924
1927
1932
1926
1925-1928
1934
1926
1926