
Crick and Watson's DNA Molecular Model
1953
1953
1953
1960
1955
1955
1951
circa 1956-1959
1950-1952
1958
circa 1964
1959
1951-1953
1839 (original); circa 1988 (replica)
1961
1960
1950-1959
1955
1950-1959
1955
1957
1962
circa 1960
1957
1955
1961
circa 1955
1962
1960
1950
1953
1960
1950
1951
1964
1965
1955
1951
circa 1950
1950
1965
1951
1955
1954-1955
1950-1960
1959
1950-1960
1963
1960
1963
1950-1951