
Crick and Watson's DNA Molecular Model
1953
1953
1953
1920-1950
1955
1934
1899-1919
1906-1915
1956
1948-1953
1839 (original); circa 1988 (replica)
1940
1951
1923
1920-1950
1920-1950
1907
1897-1898
1903
1904
1938
1920
1947
1938
1948
1923-1948
1938
1910-1920
1935
1938
1940
1901
circa 1955
1928
1910
1950
1922
1900
1932
1955; 1830
1950
1903
1955
1959
1954-1955
1914-1918
1907-1920
1915-1918
1895-1899
1918
1901