Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1610; 1923
1929
1923
1834-1836
1928
1934
1925-1930
circa 1925
1839 (original); circa 1988 (replica)
1923
1926-1932
1925
1923-07
1925-1926
1921-1930
1927-1928
1990-96
1933
1926
1934
1929
1927
1926
1927
1931
1931
1923
1924-1927
1934
1903 (original); 1982 (model)
1930
c. 1933
1921
1925
2000-100 BCE
1923
1922-1925
1921
4000-2001 BCE
circa 1923
1934
1925
1928
1921-1931
1931
1926
1930-1932
1923
1927-30