Warring States|Of flattened rectangular form with stepped edges, the surface covered with incised curvilinear motifs, and pierced lengthwise with a circular aperture, the stone of a mottled toffee-brown tone. 10.5cm (4 1/8in) long.|戰國 玉勾雲紋飾件Provenance: Arthur M. Sackler collection, by repute來源： 據傳為亞瑟·賽克勒舊藏Compare with a related jade pendant of stepped form, Spring and Autumn period, illustrated in the Compendium of Collections in the Palace Museum: Jade 3, Spring and Autumn Period and Warring States Period, Beijing, 2011, p.53, no.44.