
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1935
1938
1940
1938
2000-100 BCE
1940
1938-1940
1940
1938
1938
circa 1938
1937-1938
1938
1935
1940
1938
1938
1938
1935
1938
1940
1937-1937
1935
1955; 1830
1937-1938
1936
1934
1935
1934-1935
1934
1937
1938
1936
1937
1933
1935
1933
1939
1936
1938 and 1951
1935
1934
1936
1934
1935
1935
1940
1933