
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1963
1956
1934
1948-1953
1935-1965
1839 (original); circa 1988 (replica)
1940
1951
1953-1958
1938
1947
1938
1948
1938
1969
1935
1950-1969
1938
1961
1940
circa 1955
1935
1962
1940
1936
1934
1950
1960
1955-1965
1960
1960
1968
1932
1964
1955; 1830
1950
1965
1935
1951
1969
1939-1955
1949-1966
1955
1961-1962
1941-1963
1949
1954-1955