Ross's Diatom-finder or Field Hand Microscope, c. 1875

Simple Pocket Microscope

Ross field hand microscope, c. 1870

Ross field hand microscope, c. 1870

Although unsigned, this small simple microscope appears in the 1875 Ross & Co. catalog where it is called the Diatom-Finder or Field Hand-Microscope. The microscope is supplied with a single 1/10-inch objective that focuses by a screw mechanism onto a removable live box. At the upper end is a container that holds extra glasses for the live box. There is an eyelet at the end for attachment to a lanyard. The instrument was sold with its leather covered case.

An identical example, also unsigned, is located at the Science Museum, London: Inventory No.: 1921-222

Ross's Diatom-Finder or field hand microscope, c. 1870

The following is from the1875 Ross catalog. Note item 4.

Ross field hand microscope, c. 1875

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