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Vintage microscope slide by R & J Beck

A unique and important historical slide by R & J Beck. The label reads "SOUNDING, H.M.S. Challenger, Aug. 30th, 1875." The slide goes on to mention the latitude, longitude, and depth (2900 fathoms) of the specimen. The sample contains a large selection of mostly radiolaria subjects that were collected by the ship during the sounding. The photographs show the slide subject at various amplifications. The color in the photos is a result of the use of Rheinberg illumination in the photography. This slide is in excellent overall condition.

Item 8005

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