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