LONDON (August 27): FROM a small bookshop in Grosvenor Square in 1792 to a GBP9,000,000 'sell out' to-day is the remarkable development of W. H. Smith and Son, Limited, booksellers and stationers. The Third Viscount Hambledon, died in March 1943. His fortune has incurred death duties of GBP6,000,000 and in order to meet them, W. H. Smith (Holdings) Limited will sell shares valued at GBP6,000,000. The head of the firm to-day is David Smith, great-grandson of the founder. The new Lord Hambledon, aged 19, has not yet joined the firm.