DALLAS – A masterwork of Ming dynasty porcelain will serve as the centerpiece of Heritage Auctions’s Sept. 20-21 Asian Art Signature® Auction. The peony-patterned Chinese vessel is exquisitely glazed with copper, and was collected by Dr. Cornelius Osgood, the curator of Yale’s Peabody Museum, and his wife, Mrs. Soo Sui-ling Osgood. The dish is estimated at $300,000-$500,000. Absentee and Internet live bidding will be available through LiveAuctioneers.