
Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1918
1935
1918-1920
1919
1920-1930
circa 1919
1920-1925
1921-1930
1839 (original); circa 1988 (replica)
1925-1935
1926
1920-1929
1934
1935
1930
1920-1925
1917
1925
1928
1935
1921
1934
1920-1935
1931
1927
1924
circa 1930
1935
1928
1922
1934-1935
1918
1929-1935
1928
1925-1935
1926
2000-100 BCE
Before 1932
before 1928
1932
1930-1931
1920
1917-1918
circa 1930
1927
1931
1935
1918