Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1929
1940
1834-1836
1935
1935
1936
1928
circa 1939
1934
1940
1839 (original); circa 1988 (replica)
1936
1930-1939
1926-1932
1930-1940
1937
1934-1935
1927-1928
1936
1990-96
1936
1940
1935
1933
1937
1934
1926
1929
1927
1936
1926
1927
1938
1929-1935
1937-1938
1931
1931
1935
1938 and 1951
1935
1934
1930-1940
1903 (original); 1982 (model)
1930
c. 1933
1938-1940
1937
2000-100 BCE