LONDON - The family that controls Glyndebourne opera house is to sell an Old Master painting with an estimate of up to 10 million pounds ($16.5 million). The 9-foot “St. John the Evangelist” by 17th-century Italian artist Domenichino is being offered by the Christie family, no relation to auction house Christie’s International which is conducting the December 8th sale in London. Highly priced works have been in short supply in salerooms since the end of 2008, when major auction houses abandoned the practice of guaranteeing minimum prices to sellers as demand dropped.