Louiza Auktion & AssociatesBrussels, BELGIUM Madison Square Gallery, Inc.New York, NY Alden's AuctionFountain Valley, CA Alden's AuctionFountain Valley, CA Castle Valley Art Gallery Inc. Dublin, CA Castle Valley Art Gallery Inc. Dublin, CA Castle Valley Art Gallery Inc. Dublin, CA Louiza Auktion & AssociatesBrussels, BELGIUM Alden's AuctionFountain Valley, CA Rockefeller Auction IncFlushing, NY Castle Valley Art Gallery Inc. Dublin, CA Ocean of Art Auction GalleryTemple City, CA Louiza Auktion & AssociatesBrussels, BELGIUM Castle Valley Art Gallery Inc. Dublin, CA Treasurehouse Inc.San Leandro, CA Rockefeller Auction IncFlushing, NY Hans AuctionSouth Croydon, Croydon Treasurehouse Inc.San Leandro, CA Castle Valley Art Gallery Inc. Dublin, CA Castle Valley Art Gallery Inc. Dublin, CA Rockefeller Auction IncFlushing, NY Castle Valley Art Gallery Inc. Dublin, CA