AMSTERDAM (AP) — A Dutch Old Master painting looted by the Nazis in the dying days of World War II is to be auctioned after it was discovered hanging in the official residence of the Lord Mayor of the City of London and returned late last year to its rightful owners. "The Oyster Meal" by Jacob Ochtervelt was on show Tuesday in the Amsterdam offices of auction house Sotheby's. It goes on show at Sotheby's in New York and Hong Kong later this month before being auctioned July 4 in London with a pre-sale estimate of 1.5-2.5 million pounds ($2-3.4 million).