ARCHAIC "BI" DISC In jade, partially calcified, marked with veining and brown spots. Decorated around the rim with a "sprouting grain" motif, a regular pattern of spirals in slight relief. China, in the style of the Han Dynasty D. 13.5 cm Provenance : Former Armand Trampitsch Collection. Note: BI discs are the symbol of the Celestial Universe. Originally used as ritual objects by the Shamans, they were used to celebrate the culture of the Sun and Sky. Usually carved in semi-precious materials, they are attributed virtues that they bring to their owners: happy life, wealth, resistance to disease.