Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1929
1834-1836
1830 (original); 1967 (model)
1935
1936
1935
circa 1939
1934
1839 (original); circa 1988 (replica)
1926-1932
1936
1930-1939
1934-1935
1936
1936
1937
1990-96
1927-1928
1935
1933
1934
1926
1937
1926
1927
1929
1936
1929-1935
1938
1931
1931
1927
1938 and 1951
1935
1935
1937-1938
1930
1903 (original); 1982 (model)
1937
1937
c. 1933
1938
1934
2000-100 BCE
1928
1931
1930-1932
1926