1. Bought from Lee Van Ching [Li Wenqing] 李文卿, of Shanghai 上海, in New York. For price, see Original Miscellaneous List, p. 264. $300.
2. (Undated Folder Sheet note) Original attribution: Chinese. Chou [Zhou] 周. See further, S.I. 1154, Appendix VIII.
3. (Isabel Ingram Mayer, 1945) Chou [Zhou] 周 dynasty.
4. (Undated Folder Sheet note) Sp. G. is 2.881. Erosion and decomposition prevent a more accurate calculation for nephrite.
5. (Undated Folder Sheet note) Exhibited: The Art Institute of Chicago, Catalogue of a Loan Exhibition of Ancient Chinese Paintings, Sculptures, and Jade Objects from the Collection Formed by Charles Lang Freer (Chicago: Art Institute of Chicago, 1917), no. 93.
6. (Thomas Lawton, 1978) Attribution changed from Chou [Zhou] 周 to Neolithic. See Folder Sheet for F1917.19.
7. (Stephen Allee per Keith Wilson, February 8, 2008) On this date entered: Period One (Late Neolithic period), Date (ca. 5000--ca. 1700 BCE), Artist (Liangzhu 良渚 culture), Title, Object name, Geographical region (Lake Tai 太湖 region); plus Description per Jenny F. So and Dimensions per Christine Lee, from Jade Project Database.
8. (Jeffrey Smith per Keith Wilson, July 17, 2008) Ceremonial Objects added as secondary classification.
9. (Jeffrey Smith per Janet Douglas, June 17, 2010) Nephrite added as modifier to existing medium of "jade" based on conservation analysis.
10. (Jeffrey Smith, April 12, 2016) Transferred from Description: (Jenny So, from Jade Project Database) Mottled yellow and orange-brown. Biconical hole, drilled off-center, with ridge at meeting point. Unevenly round. Surface uneven, much altered, with chips.
Perforated disc of the type "pi;" bored from both sides leaving median ridge; mottled bright shades of yellow and orange-brown; profuse silvery area of incipient disintegration; strata running in thin layers, most noticeable on the rim where some have chipped off from erosion and decomposition. Many rough and chipped areas on rim and surface.
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