
Molecular model of penicillin by Dorothy M Crowfoot Hodgkin, England, 1945
1945
1945
circa 1920
1914-1916
1948-1950
1839 (original); circa 1988 (replica)
1874
1936
1949
1935
circa 1900
1884
1905
1705-1737
1945-1955
1900-1910
1889
1925-1935
1900-1910
1895-1904
1890-1930
1920-1950
1870-1920
c.1912
1915
1830 (original); 1967 (model)
1903 (original); 1982 (model)
1897
1870-1920
1879
1871
1879-1896
1990-96
1943
1914-1918
1934-1935
1886
1890 - 1900
1950
1904
1879
1938
1920
1947
1938
1948
1923-1948
1938
1910-1920
1935
1870-1910