NEW YORK (Reuters) - Some 71 percent of the lots offered at an auction of Medieval works of art on Thursday took in a total of $5,570,342, a result Sotheby's auction house termed disappointing. The Keir collection, which Sotheby's had estimated to be worth in excess of $25 million, was considered to contain the finest collection of Medieval enamels in the world, according to the auction house. The highest price paid on the night was for a chasse with the Holy Women at the Tomb, circa 1185-95, which sold for $530,500, or far less than its low estimate of $750,000. A highlight however was the painted enamel plaque of Polyphemus and Achimenidus, which fetched $409,500, far more than its high estimate of $225,000. A bookcover with Christ in Majesty, circa 1195-1200 also did well, selling for $233,500, or nearly double its high estimate of $120,000. In all, 28 percent of the lots offered failed to sell. Expectations for the sale had been high based on the public response to exhibits of the collection in Cologne, Paris, Lyon, Barcelona and Los Angeles. "Given the quality and the provenance of some of the major pieces, we had expected strong interest which was simply not forthcoming," Sotheby's said.