Size 178 mm (7") internal focussing with vertical circleNickle Silver embeded and graduated to read 30 min. with vernier. The graduated extendable base plate is of embeded Nickle Silver, extandable to 375 mm (15"). A highly sensitive Spirit Level is mounted on the side of the vertical circle and a circular bubble is fixed on the main plate for preliminary setting-up. The horizontal circle is of embedded Nickle Silver and is graduated to read 6 minutes with Verniers and can also be used as a pre set zero arrangement for laying out angles. The horizontal & vertical circles are fully covered to make them dust proof. Tangent screws are provided for the slow motion and locking of both horizontal & vertical circles. Optical peed sight is mounted on the top of the telescope to facilitate quick alignment of the levelling staff. The instrument is fitted with blue coated optics to give ERECT IMAGE. Supplied in a highly polished teakwood Box & teakwood tripod stand having three foot screws levelling head for accurate levelling.
BELLSTONE HI-TECH INTERNATIONAL