A MOTTLED DARK BROWN JADE COLLARED DISC

Details
A MOTTLED DARK BROWN JADE COLLARED DISC
SHANG DYNASTY

The convex walls of the inner cylinder rising above the encircling flat disc of slightly concave profile (chip and flaws), 3 1/4in. (8.3cm.) wide; Together with two white and gray jade archer's thumb rings, Ming/Qing Dynasty, 1in. (2.5cm) high; and two mottled hardstone attachments, posssibly Pre-Columbian, 1 1/4in. (3.2cm.) diam. (5)
Literature
Dame Una Pope-Hennessy, Early Chinese Jades, London, E. Benn Limited, 1923.