Stereo Viewers (various)

five plastic viewers with low voltage electric illumination and adjustable focus by various makers, (1,2) two nearly identical Jules Richard 'Verascope f40' viewers with adjustable eye-base, one made of brown the other one of blue marbled plastic, both in good used condition, together with the viewers: eleven stereo slides in original Verascope frames, (3) Wollensak 'Stereo 11' viewer with adjustable eye-base, made of black Bakelite in perfect condition, (4) rare ‘3-D Automatic Arrow-View’ (Chicago) stereoscope with adjustable eye base and interchangeable tray for ten stereo slides, in good condition, (5) nicely designed 'LifeLike' viewer by Deep-Vue Corp. (Milwaukee) made of white plastic, some yellow stains on the bottom side, otherwise in very good condition. (5)