This Hampton Nautical premium 3-inch radius 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. It has a gear-driven adjustment of the elevation angle. While this sextant is fully functional, it is NOT calibrated nor intended for navigation. This sextant is available in a beautiful polished brass finish.