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

細節

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

拍品專文

Robert Bancks(Banks)fl.1796-1834 worked from 440-1 Strand, London until 1820 when he moved to workshops at 119 New Bond St., London 1820-34. Banks was favoured by George IV. He entered into a partnership with his son in 1820