
Crick and Watson's DNA Molecular Model
1953
1953
1953
1956
1948-1953
1955
1839 (original); circa 1988 (replica)
1940
1951
1947
circa 1955
1950
1950
1948
1946
1955
1957
1955
1951
1943
1948
1957
1948-1953
circa 1955
circa 1942
1956
1952
1954
1952
1957
1954
1952
1954
1957
1956
1957
1956
1957
1952
1957
1945
1951
1955
1947
1951
1945-1955
circa 1950
1955
1940
1957
circa 1938