Catalogue entry no. 403 by Max Loehr:
403 Disk with Pattern of Incised Spirals
This disk, with its flat outer and inner margins, is decorated with a pattern of incised spirals on very low, hexagonal elevations. The linear treatment of the spirals is quite distinct from the plastic treatment in the preceding piece, No. 402, and more pronouncedly, Nos. 385 ff. A striking, cross-shaped, whitish discoloration marks both sides of the translucent, dark green stone; presumably this cross is a local calcification brought about by contact with the organic matter contained in a rope or band that was tied to the disk. Late Eastern Chou or Western Han.