1. Bought from Seaouke Yue [You Xiaoxi] 游筱溪of Shanghai 上海, in New York. Said to have been in the collection of Viceroy Tuan Fang [Duanfang] 端方and excavated in Hsi an [Xi'an] 西安, Shansi [Shaanxi] 陝西. For price, see Original Miscellaneous List, p. 339. $150.
2. (Undated Folder Sheet note) Original attribution: Chinese. Chou [Zhou] 周. See further, S.I. 1423, Appendix IX.
3. (Undated Folder Sheet note) Sp. G. is 2.930. Soft material.
4. (Isabel Ingram Mayer, 1946) Ch'ing [Qing] 清 dynasty. Reproduction of Chou [Zhou] 周 type.
5. (Elisabeth West Fitzhugh, 1957) Nephrite. X-ray diffraction. Film F477.
6. (H. Elise Buckman, 1964) The Envelope File contained no further information and has now been destroyed.
7. (Thomas Lawton, 1978) Attribution has been changed from "Ch'ing [Qing] 清" to "Late Shang 商."
8. (Jeffrey Smith per Keith Wilson, July 17, 2008) Ceremonial objects added as secondary classification.
9. (Susan Kitsoulis per Keith Wilson, April 20, 2010) Object name changed from "Cong 琮" to "Ceremonial object." Title changed from "Cong 琮" to "Tube (cong 琮)."
10. (Jeffrey Smith per Janet Douglas, June 17, 2010) Nephrite added as modifier to existing medium of "jade" based on conservation analysis.
11. (Najiba Choudhury per Keith Wilson, August 2, 2017) Title changed from "Tube (cong)" to "Tube (cong 琮)"; Period One changed from "Shang dynasty" to "Late Neolithic period"; and Date changed from "ca. 1600-1050 BCE" to "ca. 3000-ca. 1700 BCE".
12. (Najiba Choudhury per Keith Wilson, July 27, 2018) Chinese Translation added; and Description changed from "Chinese
Late Shang. Squared, hollow cylinder of the type "ts'ung," projecting collar at both ends; semitranslucent, pale green and pale pinkish cream. Cracks and chips. Box." to "Squared, hollow cylinder of the type ts'ung [cong] 琮, projecting collar at both ends; semitranslucent, pale green and pale pinkish cream. (Cracks and chips.) Acquired with a box, now lost.".