Brass Theodolite 10"

The Hampton Nautical solid brass precision theodolite is beautifully detailed, functional and calibrated. Theodolites are still used today for ultra high precision optical alignment and measurement.  The azimuth and elevation axes can be read on a vernier scale with the aid of built-in magnifiers. Both axes have slow motion controls and the telescope can plunge and reverse to reduce bearing errors. The azimuth axis has a second spirit level mounted on the telescope with a mirror to assist in leveling. The telescope utilizes precision optics and has a brass lens cover. A magnetic compass is mounted on the azimuth axis. The theodolite's 22-power non-inverting telescope has two focusing adjustments; one for the precision reticule focus and another for focusing the target.  Used for surveying and reading lines of sight and angles, the theodolite utilizes a telescope mounted on two movable planes, one horizontal and one vertical. Very similar to the navigational sextant, the theodolite is a