A rare early 19th Century lacquered brass portable transit telescope , signed Banks LONDON , with graduated bubble level, on twin suspension pins, the 1¾inch telescope with rack and pinion focusing, dust cap and slide, with tapered double cone horizontal axis, spoked wheel vertical circle with silvered scale, twin verniers, bubble level, tangent screw and clamp, opposite platform and lamp, side illumination of crosshairs, on twin A frame supports with internal flying buttress supports, on circular platform with adjustment screws - 19in.high
A rare early 19th Century lacquered brass portable transit telescope , signed Banks LONDON , with graduated bubble level, on twin suspension pins, the 1¾inch telescope with rack and pinion focusing, dust cap and slide, with tapered double cone horizontal axis, spoked wheel vertical circle with silvered scale, twin verniers, bubble level, tangent screw and clamp, opposite platform and lamp, side illumination of crosshairs, on twin A frame supports with internal flying buttress supports, on circular platform with adjustment screws - 19in.high
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
