A brass sextant is a beautiful instrument with knobs, slides, vernier scales, mirrors, magnifiers, filters, lens and eye pieces. It’s a real historic instrument that is still in use today. The sextant is the development of an older instrument called a Falstaff which measured the angle of the sun form the length of its shadow but that was always a bit tricky at sea. Indeed the sextant did not come into its own until accurate time could be kept but that’s another story. The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation. The estimation of this angle, the altitude, is known as sighting or shooting the object, or taking a sight. A sextant is an instrument used to measure the angle between any two visible objects. Its primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. Making this measurement is known as sighting the object, shooting the object, or taking a sight. The angle, and the time when it was measured, can be used to calculate a position line on a nautical or aeronautical chart. A common use of the sextant is to sight the sun at noon to find one's latitude. Its all parts are moving, can be used for basic observation or suitable for collectors and can be a gift for someone. Roorkee sextant is a great companion for any true navigator. This antique sextant looks just like a 100-year-old antique but with a shiny and brand new feel. This great piece of art from Roorkee Instruments India, with proper care and cleaning can accompany you on your adventures for many years to come. A replica from the vintage sailor's time to your Home. Beautifully designed sextant etched with top quality work. This engraved sextant is a best gift for antique collectors. These items are made up of brass not an artificial material. This antique sextant made up of pure brass could be a beautiful addition to your drawing room.