Sketch, layout plan, study of granite stairs landing at north-west corner with high and low planter boxes design along north-west boundary, Bond Centre (now Lippo Centre) (1984–1988), Queensway, Admiralty, Hong Kong香港金鐘道奔達中心(現為力寶中心)(1984至1988年)西北角花崗岩樓梯平台的研究平面佈置草圖,包括沿西北界線的高低花槽箱