To place a slide tray, the lid on the top and the front panel must be opened. The lever that loads the slides is in the down position and locked. After the slide tray is inserted, the lever is unlocked and moves upward. The first …
A bakelite tray containing 25 glass slides can be inserted by flipping down the front of the viewer. Then, by depressing the lever on the right side of the housing, one slide after another can be examined. On the left side of the viewer, there …
A wooden tray containing 20 glass slides can be inserted by flipping down the front of the viewer, then, by moving a knob, located on the right side, up and down, one slide after another can be examined. The slides are pulled up by magnets …
Paul Émile Chappuis, who was born in France, moved to London to establish a photographic studio. In 1857, he introduced a mirror in the hinged lid of the stereoscope, allowing reflected light to be directed into the viewer. This eliminated the need to tilt the …
Georges-Adolphe-Emmanuel-Pierre Balmitgère was born on September 3, 1871, in Algiers, and died on November 4, 1918, at the age of 47. Very little is known about him, except that he became interested in stereoscopy and filed three patents and two additions between 1907 and 1909, …
The Achromatic Mirror Stereoscope was specially designed for viewing paper stereoviews that were mounted in a book. It is an open viewer with a mirror on the base of the device, to which it owes its name. Two achromatic lenses are placed in adjustable brass …
