A rare American Cosmosphere
BY G.C. WESSMAN
A rare American Cosmosphere by G.C. Wessman with a 7-inch diameter terrestrial globe made up of twelve hand-coloured engraved gores and two polar calottes, the pasted cartouche reading IMPROVEMENT IN CONCENTRIC CELESTIAL & TERRESTRIAL GLOBES, PATENTED BY H. WILLIAMSON, NEW YORK, DEC. 3 1867. Sold by HARPER & BROTHERS, Franklin Square, N.Y. , showing national boundaries in dotted outline, the Atlantic Telegraph shown (some staining to the gores with loss over Siam and the North Atlantic), held on a brass axis within an unmarked brass meridian circle and a stamped meridian half-circle graduated 90°-0°-90\\f, with a split horizon ring graduated in degrees of amplitude and azimuth, with compass directions, stamped G.C. WESSMAN NEW YORK MAKER, and PATENTED DEC.3.1867 N o63 ; the whole held within a replacement 12-inch diameter glass sphere made up of two hemispheres (both unmarked) joined with a brass band, with a stamped brass hour dial, with a stamped brass meridian circle divided in four quadrants, held by a screw clamp mounting on a cast iron tripod stand with foliate decoration and double scroll feet. 22½in. (57cm.) high
A rare American Cosmosphere
BY G.C. WESSMAN
A rare American Cosmosphere by G.C. Wessman with a 7-inch diameter terrestrial globe made up of twelve hand-coloured engraved gores and two polar calottes, the pasted cartouche reading IMPROVEMENT IN CONCENTRIC CELESTIAL & TERRESTRIAL GLOBES, PATENTED BY H. WILLIAMSON, NEW YORK, DEC. 3 1867. Sold by HARPER & BROTHERS, Franklin Square, N.Y. , showing national boundaries in dotted outline, the Atlantic Telegraph shown (some staining to the gores with loss over Siam and the North Atlantic), held on a brass axis within an unmarked brass meridian circle and a stamped meridian half-circle graduated 90°-0°-90\\f, with a split horizon ring graduated in degrees of amplitude and azimuth, with compass directions, stamped G.C. WESSMAN NEW YORK MAKER, and PATENTED DEC.3.1867 N o63 ; the whole held within a replacement 12-inch diameter glass sphere made up of two hemispheres (both unmarked) joined with a brass band, with a stamped brass hour dial, with a stamped brass meridian circle divided in four quadrants, held by a screw clamp mounting on a cast iron tripod stand with foliate decoration and double scroll feet. 22½in. (57cm.) high
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
