A Brewster Patent Handheld Stereoviewer

A burr walnut and ebonized handheld stereoscopic viewer, early Brewster patent, optics, G, complete with 57 stereocards with 4 tissue examples, (1860-70s), including early India, a stereoscopic albumen print view of the Kremlin, America, Canada, U.K topographical along with a mixture of hand coloured genre scenes and a group of 1862 Great Exhibition.