We are pleased to offer this beautiful full-sized reproduction of the British Admiral's micrometer drum brass sextant. These Sextants are not an antique but we can replicated as same as originals. It is the premium quality Admiral's nautical sextant. A great work by Indian artisans. These Sextants are fully functional and made out of brass & polished with antique finish. These Sextants are a reflecting navigation instrument used to measure the angle between any two visible objects. A Sextant can also be used to measure the lunar distance between the moon & another celestial object. There are six swing-arm filters mounted on heavy filter mounts. The bottom of the index arm can be squeezed to pull the micrometer pinion away from the ground rack, allowing fast, large angular movements of the index arm. In order to minimize reflections, the solid brass sextant has a black finish. The mirrors are correctly adjusted prior to being shipped, and future adjustments can be made using the adjustment screws on the index and horizon mirrors. There is a large hardwood handle on the back of the sextant. This sextant's measures 8.5" X 8.5" X 4.5" and is 1.250 KG in Weight With Black Powder Coated.