
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1839 (original); circa 1988 (replica)
circa 1930
1928
1934
1932
1928
1934
1930
circa 1930
1928
1933
1934
1931
1924
1931
1932
1933
2000-100 BCE
Before 1932
before 1928
1932
1930-1931
1928
1934
1955; 1830
1931
1931
1933
1930
1933
1933
1990-96
1931
1930
1830 (original); 1967 (model)
1930 (replica); 1834 (original)
1934
1801-1892 (prepared); 1946 (element replaced)
1932-1933
1934
1928
1930-1932
1930-1932
1930-1932
1930
1929
1903 (original); 1982 (model)
1952-3
1928