Page 20 - Chinese Archaic Jades From The Yangdetang Collection PART II Christie's.pdf
P. 20
fig. 17 detail of lot 2720 fig. 19 detail of lot 2781
圖十七 拍品 2720 號細部 圖十九 拍品 2781 號細部
was already present in the Tomb of Fu Hao from the
Shang dynasty. However, the author once worked with
the Cultural Heritage Protection and Research Centre
of the Institute of Archaeology, Chinese Academy of
Social Sciences, and examined several jade artefacts. The
few pieces that were originally thought to be made of
nephrite proved to be tremolite upon testing, and there
was no definitive proof these carvings to be of nephrite
from Xinjiang. The author believed that the source of jade
material during this period is even more complicated than
行緊鄰陰刻線的方式使中間線條有視覺上的突出感， previously thought. It is probable that a portion of jades
fig. 18 detail of lot 2739 from this era was sourced from the Gansu and Qinghai
圖十八 拍品 2739 號細部 region in the Northwest without any indications of
nephrite jade from Xinjiang being used.
雕琢中即不減地，也不浮雕，線條並不高於平面，但 From a carving point of view, jades from the Shang
視覺上卻有陽線的效果，又稱「雙鉤」、「雙陰擠陽」、 dynasty have lines with abrupt turns with inconsistent
curvature and curl. The negative lines exhibit rough tool
「假陽線」等（圖十七）。而西周中期則出現了一種
marks on the outside edge on turns. This would have
「一面坡」工藝，其實就是兩條平行陰刻線中一條使 been carved out with the use of jieyusha sand which
用斜砣或在雕琢中將砣片傾斜的技術手法，這種手法 would have coated the tuo abrasion wheel. In addition to
可使玉器呈現出立體感和層次感，是玉雕工藝上的明 the regular intaglio lines, double-hooked negative lines
were also widely advocated decorative styles during the
顯進步（圖十八）。這種斜砣工藝手法發展到漢代，
Xia and Shang dynasties. A double-hooked negative line
就是所謂的「漢八刀」工藝，常用於漢代的玉握豬（圖 consists of two negative lines carved in parallel to each
十九）、玉蟬之上，其實並非八刀製成，而是一種線 other giving the visual effect that the centre line is raised.
條流暢犀利的大斜砣工藝。 Without carving in relief or removing the background,
the line appears to be raised above the surface plane.
另外，此期玉雕工藝在原有陰刻、浮雕、圓雕的基礎 This technique has various names including ‘double
hook’, ‘double-negative-pinched positive’, and ‘pseudo-
上，還發明了真正意義上的玉質器皿的掏膛，活環套
positive line’ (fig.17, lot 2720). A technique called ‘one-
接技術以及銅內玉兵器的製作，是一個治玉工藝完善 sided slope’ was first employed during the middle of
發展的時期。 the Western Zhou dynasty. This was simply a double-
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