Three-ring Enigma cypher machine in oak wood transit case
1934
1934
1935
1610; 1923
1920-1925
1929
1923
1834-1836
1830 (original); 1967 (model)
1935
1936
1935
1925-1930
1925-1935
circa 1939
circa 1925
1934
1839 (original); circa 1988 (replica)
1920
1926-1932
1936
1923
circa 1920
1923-07
1930-1939
1925-1926
1925
1934-1935
1921-1930
1936
1936
1937
1990-96
1927-1928
1935
1920
1933
1934
1926
1937
1926
1927
1929
1936
circa 1920
1929-1935
1938
1931
1931
1927
1938 and 1951