These high quality reproduction Compasses are replicas of the original Compasses used by mariners over the ages to guide and navigate them over the Oceans of the world. The are made of the finest Brass.The NauticaL compass make exciting nautical gifts and executive presents to anyone who loves the sea. The term "compasss" denotes a wide range of instruments for drawing, measurement, and proportional calculation. nautical compasses, to track routes on sea-charts; compasses with curved points, called gunner's compasses, to measure mouths of cannons, cannon balls, and sophisticated surveying compasses that combined a magnetic compass, a windrose, and optical sights for surveying and for drawing topographic maps.