
Crick and Watson's DNA Molecular Model
1953
1953
1953
1960
1948-1953
1955
1955
1951
1949
circa 1956-1959
1950-1952
1958
circa 1964
1951-1953
1959
1967
1966
1948-1950
1839 (original); circa 1988 (replica)
1949
1961
1960
1948-1953
1954-1968
1968
1948
1950-1959
1955
1950-1959
1955
1948
1957
1962
circa 1960
1957
1961
1955
1961
circa 1955
1962
1957
1957
1960
1950
1955-1965
1953
1960
1950
1968
1951
1964