Be aware that there is a swastika symbol on the base of the sphere - see images. The swastika is a religious symbol that dates back 10,000 years. In China, it is the symbol of infinity.
according to the Theopsophy Northwest website at
http://www.theosophy-nw.org/theosnw/ctg/swas.htm
:
from Sanskrit Keys to the Wisdom-Religion: Swastika A mystical cross with its arms bent at right angles suggesting a whirling motion; also, a symbol of good fortune and blessing. Swastika is a compound of su -- a particle meaning 'auspicious,' 'blessed,' 'virtuous,' 'beautiful,' and 'rightly'; and astika derived from the verb-root as -- to be; hence 'that which is blessed and excellent.' The Swastika is a very archaic and sacred symbol which can be found in the religious relics of every ancient nation, for it depicts the whole story of the cosmos and man, their contrasting dual aspects, the four directions of space, the revolution of worlds, cyclic progression, and the union of spirit and matter at the heart of things.
You can also learn about this ancient symbol at wikipedia:
http://en.wikipedia.org/wiki/Swastika