
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1668; 1924
1830 (original); 1967 (model)
1839 (original); circa 1988 (replica)
1952-3
1927
1931
1927
1927
1924
circa 1930
1928
1924
1932
1955; 1830
1925-1928
1931
1927
1925
1930
1933
1925
1928
1924
1927
1933
1925
1934
1924-1927
1934
1931
1934
1928
1926
1934
1925-1927
1931
circa 1930
1926
2000-100 BCE
1930-1931
before 1928
Before 1932
1927-1929
1932
1928
1932
1926
1930
1933