細節
Various auction catalogues
comprising: The Krug Collection of Glass, parts I-IV, Sotheby Parke Bernet & Co., July 1981-March 1983; European Glass, The Property of Mr. & Mrs. Fritz Biemann, Sotheby Parke Berent & Co., June 1984; The Bradford Collection of 18th Century Dutch Engraved Glass, Christie, Manson & Woods Ltd., June 1985; and the Guèpin Collection of 17th and 18th Century Dutch GlassChristie's Amsterdam B. V., July 1989
comprising: The Krug Collection of Glass, parts I-IV, Sotheby Parke Bernet & Co., July 1981-March 1983; European Glass, The Property of Mr. & Mrs. Fritz Biemann, Sotheby Parke Berent & Co., June 1984; The Bradford Collection of 18th Century Dutch Engraved Glass, Christie, Manson & Woods Ltd., June 1985; and the Guèpin Collection of 17th and 18th Century Dutch GlassChristie's Amsterdam B. V., July 1989