Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1834-1836
1935
1936
1935
1934
1937
1839 (original); circa 1988 (replica)
1936
1935
1937
1934-1935
1936
1933
1935
1936
1934
1937
1936
1931
1937-1938
1936
1938
1931
1935
1935
1938 and 1951
1934
1935
c. 1933
1938
1937
2000-100 BCE
4000-2001 BCE
1935
1937
1935
1931
1934
1933
1932-1936
1931
1938-1939
1932
1938
1934
1938
1931
1937-1938