Details
A LATE 18TH-CENTURY BRASS THEODOLITE,
SIGNED ON THE HORIZONTAL CIRCLE WELLINGTON, CROWN COURT, SOHO, LONDON, THE TELESCOPE WITH DRAW-TUBE FOCUSING, RAISED ON A LIMB WITH ADJUSTMENT SCREWS AND LOCATED ON THE VERTICAL SUPPORT ENGRAVED WITH A VERNIER SCALE ARRANGED TO TRANSIT OVER THE VERTICAL HALF-CIRCLE, DIVIDED 99°-0-99°, WITH PEG ALLOWING TELESCOPE SECURITY, LOCATED BY TWIN KNURLED SCREWS ON THE ALIDADE, WITH SINGLE VERNIER TO READ AGAINST THE HORIZONTAL CIRCLE, THE 5½IN. (14CM.) DIA. COMPASS BOX WITH SILVERED DIAL, BLUED AND BURNISHED STEEL NEEDLE WITH BRASS CAP, THE COMPASS PLATE INSET WITH A BUBBLE LEVEL, THE LOWER LIMB WITH TWO SIGHTS, RAISED ON A TRIPOD MOUNTING AND MAHOGANY PLINTH DISPLAY BASE -- 11IN. (28CM.) HIGH
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SIGNED ON THE HORIZONTAL CIRCLE WELLINGTON, CROWN COURT, SOHO, LONDON, THE TELESCOPE WITH DRAW-TUBE FOCUSING, RAISED ON A LIMB WITH ADJUSTMENT SCREWS AND LOCATED ON THE VERTICAL SUPPORT ENGRAVED WITH A VERNIER SCALE ARRANGED TO TRANSIT OVER THE VERTICAL HALF-CIRCLE, DIVIDED 99°-0-99°, WITH PEG ALLOWING TELESCOPE SECURITY, LOCATED BY TWIN KNURLED SCREWS ON THE ALIDADE, WITH SINGLE VERNIER TO READ AGAINST THE HORIZONTAL CIRCLE, THE 5½IN. (14CM.) DIA. COMPASS BOX WITH SILVERED DIAL, BLUED AND BURNISHED STEEL NEEDLE WITH BRASS CAP, THE COMPASS PLATE INSET WITH A BUBBLE LEVEL, THE LOWER LIMB WITH TWO SIGHTS, RAISED ON A TRIPOD MOUNTING AND MAHOGANY PLINTH DISPLAY BASE -- 11IN. (28CM.) HIGH
SEE COLOUR ILLUSTRATION