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
1990-96
1936
1935
1942
1937
1934
1936
1943
1938
1937-1938
1938 and 1951
1935
1935
1934
1903 (original); 1982 (model)
1940-1944
1938
2000-100 BCE
1938-1940
1937
1940
1943
1937
1935
4000-2001 BCE
1934
1935
circa 1940
1941
1942
circa 1938
1935
1955; 1830