A JADE DISC, BI, AND A JADE RING, HUAN Warring States/Han Dynasty or later The first of plain circular form, carved from a mottled brown/black stone; the second also of plain 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.