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![E. Leitz, Wetzlar, No. 6087, c.1884. Grosses mikroskop - Stativ Nr. 1b. Monocular microscope with polarizing attachments E. Leitz, Wetzlar, No. 6087, c.1884. Grosses mikroskop - Stativ Nr. 1b. Monocular microscope with polarizing attachments](http://www.antique-microscopes.com/photos/leitz2.jpg)