
Crick and Watson's DNA Molecular Model
1953
1953
1953
1969-1970
1973
1969
1934
1976-1979
1935
1942
1955
1960
1948-1953
1955
1946-1950
1940
1951
1949
1945-1955
circa 1956-1959
1935
1935
1969
1934-1935
1958
1979
1946
circa 1964
circa 1972
1980
1951-1953
1959
1945
1967
1970-1979
1950-1952
1938
1937-1960
1966
1948-1950
1930-1960
1935
1943
1930-1960
1839 (original); circa 1988 (replica)
1936
1949
1961
1960
1978
1974