Material : Brass Color : Antique Finish High quality astrolabe hand tooled handcrafted available in 8.5" size. It has unique design.Great wall-hanging Arabic navigational astronomical astrolabe in antiquated brass.Each plate is totally hand engraved with beautiful Arabic calligraphy . Very heavy brass construction Antique finish astrolabe comes with five panels that are easily removable. This piece is easily displayed by hanging it from its top loop. It is approximately 8.5" tall with hook and 5" wide. Each plate is about 4" wide. It is made from brass and is fairly heavy. This is a replica item, made to look like an antique. Some minor imperfections are likely. An astrolabe is an elaborate inclinometer, and can be considered an analog calculator capable of working out several different kinds of problems in astronomy. Historically used by astronomers and navigators to measure the altitude above the horizon of a celestial body, day and night, it can be used to identify stars or planets, to determine local latitude given local time and vice versa, to survey, or to triangulate. It was used in classical antiquity, the Islamic Golden Age, the European Middle Ages and the Age of discovery for all these purposes. Vintage Brass spherical decorative Astrolabe in good condition with five detachable plates. An Astrolabe - any of a type of early scientific instrument used for reckoning time and for observation purposes. Beautiful hand calligraphy in Arabic all over the sextant. Please check all the images, images are part of description. A great addition for your vintage art and antique lovers. Best for your collection, home décor or personal gifting.