George III Mahogany Zograscope with Inlaid Magnifier on Stand
George III mahogany & inlaid zograscope or magnifier on stand, the magnifier and reflecting mirror both inlaid in within baluster uprights topped with urn finials on turned and ringed column and dished circular base, 67.5 cm high
Antique Mahogany Zograscope Magnifying Viewer (19th Century)
Zograscope antique mahogany magnifying viewer, 19th century, 64 cm high
Antique Mahogany Zograscope Telescopic Viewer (1855)
Zograscope antique telescopic specimen viewer, turned mahogany, circa 1855, 67 cm high
Georgian Zograscope: Enhancing Print Perspective
Georgian Zograscope the zograscope, or 'Optical diagonal machine', was used mostly in the C18 and first half of the C19 for viewing prints. It has a large shallow convex lens. When the print is viewed through the lens, it seems to enhance the natural…
19th Century Mahogany Zograscope
An early 19th century mahogany zograscope, of typical form with turned stem, 76 cm high
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