Addison, ILLeonard Auction, a division of The Leonard Company Monrovia, CAJohn Moran Auctioneers, Inc. Toronto, OntarioNorth American Pen Auctions LTD Pittsfield, MAFontaine's Auction Gallery Duesseldorf, NRWHargesheimer Kunstauktionen Duesseldorf Pittsfield, MAFontaine's Auction Gallery Hatfield, MAKimballs Auction and Estate Services Mount Kisco, NYThe Benefit Shop Foundation Inc. Krefeld, NRWKunst & Design Auktionshaus Roeselare, West-Vlaanderen