This solid brass 4-inch sextant has a slow motion control to allow fine adjustment of the elevation angle. A built-in magnifier can be swung into position to assist in reading the German Silver vernier scale, and there are six swing-arm filters. The sextant is engraved Hampton Nautical. It is perfect for the collector or the beginner interested in learning celestial navigation. A beautiful handcrafted hardwood storage and display box comes with this solid brass sextant. The case is made out of a high quality smooth finish hardwood. The box has one clasp and a brass filling of anl anchor and rope embedded in the top of the box.