The sextant has four swing-arm filters, and a slow motion control to allow fine adjustment of the index arm. The index arm is engraved "White Star Line, R.M.S. Titanic" with a serial number. The index mirror can be fully adjusted using three brass screws. A built-in magnifier can be swung into position to assist in reading the German Silver vernier scale. The telescope has polished glass lenses and can be focused to produce a sharp magnified erect image. The sextant measures 4 3/4" tall, 5" wide, 2.75" deep, and weighs 1 pound, 3 ounces. The sextant comes with a beautiful velvet lined hardwood storage and display box that has fitted cut-outs to securely hold the sextant. The case measures 7" square and 4 1/8" tall, and weighs 2.5 lbs. The outside of the box has a solid brass plaque engraved "RMS Titanic, White Star Line, Nautical Sextant" with the matching serial number. This reproduction sextant is fully functional but not intended for navigation.