Micoscopes and microscopic accessories Carl Zeiss Jena, VEB. creator text book Jena 1906 1906 33. ed.
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ENG At head of t.p.: Carl Zeiss, Jena. Catalogs Microscopes https://www.biodiversitylibrary.org/bibliography/31847 18200106 10.5962/bhl.title.31847 CUY