Their representatives were Yamanaka Trading Co., Ltd. of Sadajiro YAMANAKA, Ryusendo of Matsutaro MAYUYAMA, the Okura Shukokan Museum of Fine Arts of Kihachiro OKURA, and they bought antique calligraphic work and paints, bronze ware, porcelain and books from China to sell to Europe and the United States.
その代表は山中定次郎の山中商会・繭山松太郎の龍泉堂・大倉喜八郎の大倉集古館であり、彼等は書画骨董・青銅器・磁器・書籍といったものを中国から購入し欧米に販売していった。