Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1942
1940
1834-1836
1935
1936
1935
1934
circa 1939
1940
1839 (original); circa 1988 (replica)
1936
1937
1934-1935
1936
1940
1936
1935
1933
1942
1934
1937
1936
1943
1937-1938
1938
1931
1931
1938 and 1951
1935
1934
1935
1903 (original); 1982 (model)
1940-1944
c. 1933
2000-100 BCE
1938
1937
1938-1940
1940
1943
4000-2001 BCE
1937
1935
circa 1940
1934
1935
1931
1941