Classic Nautical tool, Theodolite used by sailors to provide direction while at sea. Explore the world around you with this instrument of the galaxy. Decorate your desk or bookcase with this classy brass nautical treasure. Fascinating tool guaranteed to satisfy the curious. Create an adventure and enjoy! This Theodolite is a precision tool used to guide the way of sailors. The telescope would be used to first sight a fixed object in the horizon, then measure the distance of the angles between