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This model was designed by Francis Herbert Wenham (1824-1908) at a time when interest in oblique illumination was high. It was called "Wenham's Universal Inclining and Rotating Microscope." The main components are of standard Ross design but the large segmental limb, which carries the monocular body, the stage, and substage, slides in a fitting attached to the circular rotating base. This was an expensive and complex instrument to build, and as a result very few of them were made. No case or accessories. Signed: Ross, 5250 London.