
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1936
1935
1936
1940
1839 (original); circa 1988 (replica)
1925-1935
1936
circa 1939
1926
1934
1938
1938
1935
1930
1930-1940
1925
1928
1923-1939
1935
1934
1931
1927
1924
circa 1930
1935
1928
1932-1936
1934-1935
1937
1937
1938 and 1951
1929-1935
1928
1925-1935
1926
1936
1923-1941
2000-100 BCE
Before 1932
before 1928
1938-1940
1932
1930-1931
circa 1930
1927
1931
1935
1940