
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1918-1920
1919
1920-1925
1917
1936
1935
1918
1936
1925-1926
1830 (original); 1967 (model)
1935
1930
circa 1930
1931
1924
circa 1930
1935
1918
1934-1935
1932-1936
2000-100 BCE
1927
1931
1930-1931
1928
1921
1934
Before 1932
before 1928
1932
1935
1935
1926
1932
1920-1929
1933
1928
1918
1934
1918
1936
1920
1922
1932
1955; 1830
1927
1925
1920
1921-1931