Brass 5" Celestial Spherical Astrolabe or Armillary Sphere with Arrow
Brass 5" celestial astrolabe on a wooden stand, also called a armillary sphere and has an arrow through the globe.
An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centred on Earth or the Sun, that represent lines of celestial longitude and latitude and other astronomically important features, such as the ecliptic.
The ring is 10cm in diameter. & it stands 14 cm tall