LONDON.- On 6th July 2011, Sothebys London Old Master and British Paintings Evening Sale will offer a selection of newly discovered and important works of exceptional quality and rarity, many of which have remained in private collections for decades. Estimated to reach a total in excess of £31 million, the auction of 73 paintings, led by a monumental Venetian view painting by Francesco Guardi, will feature masterpiece works by Sir Anthony Van Dyck, Correggio, Pieter Brueghel the Younger, John Constable, Giovanni Battista Tiepolo, Hans Schäufelein and Frans Jansz. Post. Alex Bell, Sothebys Co-Chairman, Old Master Paintings, Worldwide, said: It is unprecedented for Sothebys to offer in a single sale one of the greatest Venetian view paintings by Franesco Guardi, together with a newly