Details
A BLACK-ENAMELLED AND LACQUERED-BRASS TRANSIT THEODOLITE,
BY COOKE, TROUGHTON & SIMMS LTD. LONDON AND YORK, NO. 20781, THE TELESCOPE WITH LENS HOOD, FIXED FORE AND AFT SIGHTS, FIXED PRIMARY FOCUSING WITH FINE EYEPIECE ADJUSTMENT, THE AXIS SUPPORTED VIA TWIN LIFT-OVER CLAMPS WITH TENSIONERS, INCORPORATING THE 5-INCH VERTICAL CIRCLE, WITH SILVERED SCALE AND TWO MICROMETER FINE ADJUSTERS FOR THE VERNIERS, GRADUATED BUBBLE LEVEL AND TANGENT SCREW FINE ADJUSTMENT, THE TWIN VERTICAL SUPPORTS WITH TWO ASSOCIATED SUPPORTS FOR TWO PRISMATIC MICROMETER READ-OUTS, WITH GLASS ILLUMINATION FOR THE ENCLOSED HORIZONTAL SCALE, WITH ADDITIONAL CROSS-BUBBLE FINE TANGENT SCREW ADJUSTMENT AND CLAMP, THE TRIPOD ATTACHMENT WITH THREE ADJUSTABLE SCREW FEET, WITH ACCESSORIES, CONTAINED IN TWO MAHOGANY CARRYING CASES WITH OUTER LEATHER PROTECTIVE COVERS, THE LARGER -- 13IN. (33CM.) HIGH
SEE ILLUSTRATION
BY COOKE, TROUGHTON & SIMMS LTD. LONDON AND YORK, NO. 20781, THE TELESCOPE WITH LENS HOOD, FIXED FORE AND AFT SIGHTS, FIXED PRIMARY FOCUSING WITH FINE EYEPIECE ADJUSTMENT, THE AXIS SUPPORTED VIA TWIN LIFT-OVER CLAMPS WITH TENSIONERS, INCORPORATING THE 5-INCH VERTICAL CIRCLE, WITH SILVERED SCALE AND TWO MICROMETER FINE ADJUSTERS FOR THE VERNIERS, GRADUATED BUBBLE LEVEL AND TANGENT SCREW FINE ADJUSTMENT, THE TWIN VERTICAL SUPPORTS WITH TWO ASSOCIATED SUPPORTS FOR TWO PRISMATIC MICROMETER READ-OUTS, WITH GLASS ILLUMINATION FOR THE ENCLOSED HORIZONTAL SCALE, WITH ADDITIONAL CROSS-BUBBLE FINE TANGENT SCREW ADJUSTMENT AND CLAMP, THE TRIPOD ATTACHMENT WITH THREE ADJUSTABLE SCREW FEET, WITH ACCESSORIES, CONTAINED IN TWO MAHOGANY CARRYING CASES WITH OUTER LEATHER PROTECTIVE COVERS, THE LARGER -- 13IN. (33CM.) HIGH
SEE ILLUSTRATION