Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935-1945
1940
1839 (original); circa 1988 (replica)
1940-1945
1934-1935
1990-96
1940
1935
1934
1937
1942
1943-1945
1945
c. 1933
1938-1940
2000-100 BCE
1938
1934
4000-2001 BCE
1935
1934
circa 1940
1955; 1830
1941
circa 1938
1946
1943
1934
1940
1938
1942-1945
1945-1946
1935
circa 1945
1938
1945
1936
1935
1935
1938
1935
1942
1937
1937
1946
1939-1945
1933
1934
1938 and 1951