This Nauticalmart premium 3-inch radius Antique Brass Sextant Paperweight 3" is our finest miniature brass sextant. A beautiful desktop accessory, the sextant is a reproduction of a small lifeboat sextant used in emergencies for navigation. Despite it's small size, it is meticulously and precisely crafted from ssolid brass with an antique brass finish. It has a gear-driven adjustment of the elevation angle.