Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1929
1940
1834-1836
1935
circa 1939
1940
1839 (original); circa 1988 (replica)
1936
1930-1939
1934-1935
1937
1936
1936
1940
1935
1990-96
1933
1937
1934
1929
1936
1927
1929-1935
1931
1938 and 1951
1935
1937-1938
1930-1940
1903 (original); 1982 (model)
c. 1933
1937
2000-100 BCE
1938-1940
1938
1940
1937
4000-2001 BCE
1934
1928
1931
1930-1932
1934
circa 1940
1935
1930-1940
1927-30
1955; 1830
1930-1931
1930