For the ch'i-p'ao used by Empress Takamatunomiya Sinnouhi of Japan on her 50th wedding anniversary, Yang went to Japan to measure the empress inside the palace. The ch'i-p'ao took 10 nights to make.
日本高松宮親王妃金婚宴會上穿的中國旗袍，便是楊成貴赴日進宮量身，花了十個晚上製作完成的。