4" Captain Brass Sextant Nautical Maritime Astrolabe Marine Collectibles (Brass Antique)

 
 

 

Description 

This NAUTICAL sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects. The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation. This is A Good Gift Option For Mariners and surveyors, navigational or nautical enthusiast, and your Friends and Family having keen interest in Navigating.