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