Napolitan School, 17th Century, The slaying of Abel. photo courtesy Sotheby's 94.5 by 117 cm.; 37 1/4 by 46 in. Estimate 10,000—15,000 GBP. Lot Sold 103,250 GBP Sotheby's. Old Master and British Paintings, 28 Oct 10, London www.sothebys.com