This is very nice stereo-graphoscope or stereoscope made and patented by “Underwood & Underwood * New York”. Patent date from 1901 on the slide support. Stereo-graphoscopes are the only hand-held stereo-viewers that can view 3-dimensional stereo-views. This viewer is in very good condition.
Also included are a mixture of 42 complimentary stereo-views. They are not all perfect.
Highlights: (1) Her Majesty Queen Victoria at Breakfast with Princesses Beatrice and Victoria in the 60th year of her Reign. (2) War 1914-15: The wife of Prince August Wilhelm leaves the hospital train after the visit. (3) Emperor’s Palace from Across the Spree, Berlin, Germany (the palace was destroyed in the 2nd World War).