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Advertisement for 'Clarke's Blood Mixture', published England, 1925-1926
Materia Medica & Pharmacology
Grafenberg intrauterine device (IUD), Europe, 1925-1935
Obstetrics, Gynaecology & Contraception
Photograph of the instruments used by the British expedition when observing the 1919 total solar eclipse in Brazil.
Model of an Assyrian kelek or raft of inflated ox-hides, one of three models of Babylonian vessels of skin
700 BCE; 1931