An Archaic Jade Knife, Qijia Culture, 2200-1600 BC齐家文化 玉刀The opaque grayish jade blade with brown mottling, thinly carved in a trapezoidal shape, the long straight edge opposite a slightly curved cutting edge, beveled on both sides, length 13 in — 33 cmProvenance:Mr. Loo, San Francisco Private Collection来源：旧金山卢氏私人珍藏Note:Compare with examples from Christie’s Hong Kong, November 27, 2018, lot 2711; Sotheby’s Hong Kong, October 9, 2022, lot 114; the Palace Museum, Beijing, accession number 00051684; and the Arthur M. Sackler Gallery, Washington, accession number F1917.25类似工艺请参考香港佳士得2018年11月27日，拍品编号2711香港苏富比2022年10月9日，编号114北京故宫故宫博物院，编号，新00051684塞克勒艺术馆，编号：F1917.25Estimate: $1,500—2,000