Published: Friedrich Georg Zeileis, Ausgewählte Chinesische Jade aus Sieben Jahrtausenden (selected Chinese jades from seven millennia), 1994, pages 80-81, no. 64.

China, c. 3000-1000 BC. The exterior rim carved as three arcs, each rising to a point and carved with raised teeth, the interior with a plain circle. The stone of a beautiful russet and honey-brown tone with dark veins.

Provenance: A private collection in San Francisco, USA, 1980s. Friedrich Georg Zeileis, acquired from the above. Dr. Friedrich Georg Zeileis (b. 1939) is a retired physician who built an important collection of ancient Chinese jades and bronzes. He was also a pianist and composer, and published several books, as well as catalogs of his substantial art collections, including fine Chinese jades and bronzes.
Condition: Condition commensurate with age. Old wear and tiny nibbles. The stone with natural fissures, some of which have developed into small cracks over time, with associated old fills.

Weight: 58.8 g
Dimensions: Diameter 9.7 cm (at the widest points)

Literature comparison:
Compare a related jade xuanji, 11.3 cm wide, dated Neolithic or Shang, 15^th-10^th century BC, in the British Museum, registration number 2022,3034.82, illustrated by Jessica Rawson, Chinese Jade from the Neolithic to the Qing, 1995, cat. no. 8.1. Compare a related jade xuanji, 13.9 cm diameter, dated to the Shandong or Henan Longshan culture, c. 2300-1700 BC, in the Museum of East Asian Art, Bath, record number 589. Compare a related jade notched disc, 15.6 cm diameter, in the Metropolitan Museum of Art, accession number 27.15.

Auction result comparison:
Type: Closely related
Auction: Sotheby’s New York, 18 March 2014, lot 123
Price: USD 75,000 or approx. EUR 85,500 converted and adjusted for inflation at the time of writing
Description: A jade ritual notched disc (xuanji), Neolithic period
Expert remark: Note the significantly larger size (18.5 cm)

Auction result comparison:
Type: Closely related
Auction: Christie’s New York, 23 September 2022, lot 822
Price: USD 18,900 or approx. EUR 17,500 converted and adjusted for inflation at the time of writing
Description: A rare pale green and beigish-brown jade notched disc, Northwest China, late Neolithic period-early Bronze Age, 3^rd-2^nd millennium BC
Expert remark: Note the similar size (11.5 cm)

Auction result comparison:
Type: Closely related
Auction: Christie’s Hong Kong, 28 November 2018, lot 2709
Price: HKD 1,000.000 or approx. EUR 137,500 converted and adjusted for inflation at the time of writing
Description: A Celadon Jade Notched Disc, Yabi
Expert remark: Note the slightly larger size (13 cm)



新石器時代末至商代玉璇璣
中國，公元前約3000-1000年。璇璣為扁薄體，近似圓形，光素無紋。中部一大圓孔，內緣規整，外緣為三個同方向旋轉的凸脊，間距相等，每脊間各有兩組分別三個齒狀鉏牙，鉏牙皆排列規整，保存完好。美麗的赤褐色和蜜棕色調玉石，帶有深色紋理。

出版：Friedrich Georg Zeileis，《Ausgewählte Chinesische Jade aus Sieben Jahrtausenden (selected Chinese jades from seven millennia)》，1994年，第80-81頁，圖 64。

來源：美國舊金山私人收藏，1980年代；Friedrich Georg Zeileis，購於上述收藏。Friedrich Georg Zeileis 博士（生於 1939 年）是一位退休醫生，收藏了一批重要的中國古代玉器和青銅器。他還是一位鋼琴家和作曲家，出版了數本書籍，並出版了大量藝術收藏品的目錄，其中包括精美的中國玉器和青銅器。
品相：品相良好，有磨損和小刻痕，帶有天然裂縫的玉料，隨著時間的推移，其中一些已經發展成小裂縫，並有填充物。

重量：58.8 克
尺寸：直徑 9.7 厘米 (最寬處)

文獻比較：
比較一件相近的新石器時代或商代公元前十五至十世紀玉璇璣，11.3 厘米寬，收藏於大英博物館，館藏編號2022,3034.82，見Jessica Rawson，《Chinese Jade from the Neolithic to the Qing》，1995年，圖錄編號8.1。比較一件相近的商周或河南龍山文化公元前2300至1700年玉璇璣，直徑13.9 厘米，收藏於巴斯東亞藝術博物館，館藏編號589。比較一件相近的玉碟，直徑15.6 厘米，收藏於大都會藝術博物館，館藏編號27.15。

拍賣結果比較：
形制：非常相近
拍賣：紐約蘇富比，2014年3月18日，lot 123
價格：USD 75,000（相當於今日EUR 85,500）
描述：新石器時代玉璿璣
專家評論：請注意尺寸明顯較大(18.5 厘米)。

拍賣結果比較：
形制：非常相近
拍賣：紐約佳士得，2022年9月23日，lot 822
價格：USD 18,900（相當於今日EUR 17,500）
描述：新石器時代良渚文化公元前三至二千紀青白玉璿璣
專家評論：請注意相似尺寸(11.5 厘米) 。

拍賣結果比較：
形制：非常相近
拍賣：香港佳士得，2018年11月28日，lot 2709
價格：HKD 1,000.000（相當於今日EUR 137,500）
描述：龍山文化約公元前2800-2000年青玉牙璧
專家評論：請注意尺寸稍大(13 厘米)。