
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1956
1839 (original); circa 1988 (replica)
1951
1953-1958
1961
circa 1955
1950
1960
1960
1960
1955; 1830
1950
1951
1955
1954-1955
1950-1960
1959
1950-1959
1955
1950-1959
1955
1957
circa 1960
1957
1960
1950
1956
1950-1960
1960
1954
1960
1958
1951
1953
1954
circa 1953
1951
circa 1955
1957
1950-1960
1950-1953
1950-1960
1955
1950-1953
1950-1952
1958
1956