Beautiful Armillary sphere by Chez. G Gobille. French origin from the second half of the 20th century. An armillary sphere is a celestial sphere fitted with metal rings representing the main circles of the sky. The armillary sphere was invented by Eratosthenes in 255 B.C. The name comes from the Latin, armilla, meaning bracelet. Usually the earth, but later the sun, is placed in the centre of metal circles. Dimensions: Height: 30cm Diamater: 18cm Condition: The sphere is in good condition considering its age. Shipped with care and insured, pick up is also possible.