
Crick and Watson's DNA Molecular Model
1953
1953
1953
1955
1955
1951
1951-1953
1839 (original); circa 1988 (replica)
1955
1955
1955
circa 1955
1953
1951
1955
1951
1951
1955
1954-1955
1955
1951
May 1953
1955
1954
1951
1953
1956
1955
1954
circa 1955
1956
1952
1955
1954
1952
1955
1954
1952
1954
1956
1956
1952
1954
1951
1951
1956
1953
1956
1951-1953
1956
1938 and 1951