
Crick and Watson's DNA Molecular Model
1953
1953
1953
1920-1950
1956
1948-1953
1955
1934
1920-1960
1920-1950
1920-1950
1940
1951
1839 (original); circa 1988 (replica)
1923
1947
1935
circa 1955
1910
1950
1922
1960
1950
1913-1923
1935
1915
1948
1946
1950-1960
1950-1959
1955
1914-1920
1957
1950-1959
1955
1951
1943
1950-1960
1948
1957
circa 1960
1920-1929
1912
1931
1930
circa 1930
1910
circa 1955
1910
circa 1942
1958