
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1940
1839 (original); circa 1988 (replica)
1935
1935
1943
circa 1942
1935
1940
circa 1938
1938
1938
1937
1942
1937
1944
1943
1937-1937
1937-1938
1937-1938
1938
1938
1938
1938
1940
1938
1938
1936
1940
1935
1936
1940
1934-1935
1955; 1830
1935
1939
1936
1935
1934
1934
1934
1934
1935
1938 and 1951
1936
2000-100 BCE
1940-1944
1938-1940
1942
1942