
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1931
1930-1931
1839 (original); circa 1988 (replica)
1936
1935
1925-1935
1830 (original); 1967 (model)
1903 (original); 1982 (model)
1990-96
1934-1935
1938
1938
1938
1935
1938
1928
1932
1955; 1830
1935
1927-1929
1934
1937
1931
1927
1937
1930
circa 1930
1925
1928
1924
1935
1927
1933
1939
1936
1938 and 1951
1929-1935
1928
1925
1935
1925-1935
1934
1936
1924-1927
1934
1929-1935
1931
circa 1925
2000-100 BCE