Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1929
1940
1834-1836
1830 (original); 1967 (model)
1935
1936
1935
circa 1939
1934
1940
1839 (original); circa 1988 (replica)
1936
1930-1939
1930-1940
1934-1935
1937
1936
1936
1940
1935
1990-96
1933
1934
1937
1929
1936
1929-1935
1938
1931
1931
1938 and 1951
1935
1935
1930-1940
1937-1938
1930
1903 (original); 1982 (model)
c. 1933
1937
2000-100 BCE
1938-1940
1938
1940
1937
1934
4000-2001 BCE
1935
1931