An unusual 19th-Century lacquered-brass Continental Everest-pattern theodolite, unsigned, the telescope with rack and pinion focusing, dust cap, the axis with fore and aft quadrant scales located in twin clamps with detachable bubble-level, the horizontal limb with additional bubble-level raised on a vertical pillar fitted to the spoked horizontal circle with silvered scale, the twin verniers with light shades and folding magnifiers, fine adjustment by tangent screw with clamp, raised on three-screw tripod attachment with additional fine adjustment mechanism, in fitted walnut case with operating instruction leaflet by RICHER, 15, rue de la Cerisaie (prés la Bastille), PARIS, and further inscribed in ink Riccio Cemissio Geometra, Civetovecchia -- 11in. (28cm.) wide See Colour Plate
An unusual 19th-Century lacquered-brass Continental Everest-pattern theodolite, unsigned, the telescope with rack and pinion focusing, dust cap, the axis with fore and aft quadrant scales located in twin clamps with detachable bubble-level, the horizontal limb with additional bubble-level raised on a vertical pillar fitted to the spoked horizontal circle with silvered scale, the twin verniers with light shades and folding magnifiers, fine adjustment by tangent screw with clamp, raised on three-screw tripod attachment with additional fine adjustment mechanism, in fitted walnut case with operating instruction leaflet by RICHER, 15, rue de la Cerisaie (prés la Bastille), PARIS, and further inscribed in ink Riccio Cemissio Geometra, Civetovecchia -- 11in. (28cm.) wide See Colour Plate
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
