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Musuem of Natural History of the Humboldt University of Berlin
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'90 Science and education
A doubled-sided poster with a half of the 1990 calendar on each side. There are also photographs of artifacts and research equipment. On one side is a microscope surrounded by samples of uranium, books, and scientific measuring devices. This photograph celebrates the 200th anniversary of the discovery of uranium. The photograph on the other side features several examples of animal and plant fossils.