
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1936
1935
1936
1936
1940
circa 1939
1839 (original); circa 1988 (replica)
1934
1938
1938
1935
1935
1934
1931
1938
1938
1938
1935
1938
1940
1940
1936
1932
1932-1936
1934-1935
1937
1937
1931
1933
1939
1936
1935
1931
1938
1935
1938
1935
1934
1934
1931
1940
1955; 1830
1932
1938 and 1951
1936
2000-100 BCE
Before 1932
1938-1940