57: A 19THC MAHOGANY ZOGRASCOPE WITH INLAID DECORATION

An early 19th century mahogany zograscope or optical diagonal machine. These table-top devices were used for viewing 'Vue d'optique' hand colored engravings sometimes called Perspective Views. The perspective view was laid flat on the tabletop and when viewed through the zograscope provided the viewer with an enhanced, somewhat three-dimensional image (look for lots with Vue d'optique optical engravings in this same auction). These views, of varying accuracy, were usually noteworthy sights around major European cities.
The zograscope is comprised of two adjustable inlaid wood frames, one with mirror and one with lens, both joined to a U-shape yoke with turned bone finials and mounted to a telescoping turned column raised on a turned mahogany circular base with additional inlay decoration. 24 x 10.5 inches.

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Very good original intact condition noting a split in the block where yoke joins stand, the original mirror displays crazing and the effects of age on the silvering. Mirror severly spotted, broken frame, needs repair.
$300 - $400