A jade disc, bi and a jade ring, huanWarring States/Han Dynasty
The first, of plain circular form, carved from a mottled brown/black stone; the second, also of plain simple form, from a greyish/spinach green tone with mottled inclusions and traces of calcification.
The huan: 5.8cm (2 1/4in) diam. (2).注脚Provenance: according to the collector's notes,
The jade ring, huan acquired from Schulman Coin & Mint, Inc., New York, The Howard D. Gibbs Estate, Part VI: Chinese Jade And The Orient March 20, 21, 1972, lot no. 244.

The jade disc, bi, from Schulman Coin & Mint, Inc., New York, The Howard D. Gibbs Estate , Part III: Coin and Primitive Money. January 26, 27, 1971, lot no. 243.