
Crick and Watson's DNA Molecular Model
1953
1953
1953
1934
1935
1951
1948-1953
1950-1952
1936
1935
1942
1951-1953
1949
1948-1950
1950
1953
1953
1945
1936
1946
1839 (original); circa 1988 (replica)
1948
1946-1950
1940
1949
1935-1945
1936-1948
1925-1935
1940-1945
1943
1930-1950
1936
circa 1939
1948-1953
1940-1950
1945
1926
1948
1946
1943
1948
1938
1947
1938
1948
1923-1948
1938
1935
1938
1940
1928