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