Case in form of a book containing a simple metal folding stereoscope and set of 14 stereo photographs (No.13 missing). Most are from Prof. Thompson's Anatomy of the Human Eye. Stereograms: Anatomy and Physiology of the Eye
Stereoscope for measuring squint, hand held, steel, by J. and R. Fleming Ltd., British, 1920-1940 Stereoscope for measuring squint