Compass Microscope - 18th century development of the Murschenbroek simple microscope. It has a circular disc carrying lens of various powers.

    Licence: Attribution 4.0 International (CC BY 4.0)

    Credit: Compass Microscope - 18th century development of the Murschenbroek simple microscope. It has a circular disc carrying lens of various powers. Wellcome Collection. Source: Wellcome Collection.

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