PARIS (Reuters) - A score by Mozart and a letter from Vincent Van Gogh are among hundreds of lots up for grabs this month in auctions of items by composers, artists and writers. They are going under the hammer in Paris as part of a series of sales aimed at liquidating a 130,000-item collection of art, music and literary works put together by French group Aristophil, which was set up in 1990 and raised funds from investors in exchange for a share in the pieces.