
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1936
1935
1936
1839 (original); circa 1988 (replica)
1925-1935
1936
1926
1935
1928
1936
1934
1932
1955; 1830
1935
1925-1928
1927-1929
1932-1936
1934-1935
1934
1931
1931
1927
1930
circa 1930
1932
1925
1928
1924
1935
1927
1933
1926
1936
1929-1935
1928
1925
1935
1925-1935
1926
1923
1934
1936
1924-1927
1934
1929-1935
1931
2000-100 BCE
Before 1932