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