LONDON.- A collection of remarkable 3,000-year-old Chinese bronze ritual offering vessels will be among the most important items in Bonhams next sale of fine Chinese Art on May 12th. Two of these items are estimated to sell for £700,000 to £1,000,000 and £500,000 to £800,000. They have emerged from a little known Canadian collection made by a family which fled the Nazis and spent WWII in China, joining family in Canada after the war. A granddaughter, Mrs E. Sinclair, inherited the collection. Lot 249 is an important and rare archaic bronze wine vessel and cover, fangyi late Shang Dynasty, Circa BC 1300-1050, cast with mythical beasts and dragons. It is estimated to sell for £700,000 to £1,000,000. Among all bronze vessels produced in early China, the fangyi, a rectangular wine vessel, deserves special attention. It is extremely rare as it was made during a short period (Late Shang –Early Zhou, c. 1300-1000BCE). Almost all