Brass Dollond-pattern frame sounding quintant.

Sounding quintant made by W. F. Stanley and Co. Ltd., London, about 1920. Anodized brass Dollond-pattern frame, polished limb, a wooden handle. Signed on the limb: Stanley, London. Marked on the limb: 7361. Inlaid silver scale from -5° to 190° every 20', measuring to 156°. Silver vernier to 20", zero at the right. The tangent screw and clamping screw are on the back of the index arm. No shades. Index-glass adjustment by a capped capstan screw; adjustment of the horizon glass by a capped capstan screw and a square-headed screw and a detached key. Magnifier on a 45 mm swivelling arm. Threaded telescope bracket without adjustment. Telescope (119 mm, large objective) erect image; telescope (87 mm, large objective) erect image, with a diaphragm that can be screwed on the objective end. An adjusting key and an adjusting pin. A square fitted mahogany box with an inlaid brass plate on the lid marked: SX 2.