LONDON.- A charming silver novelty snuffbox presented to Lord Glenconner by Her Royal Highness, The Princess Margaret, Countess of Snowdon, on the occasion of his 50th birthday, a glass image of his house on Mustique presented on his 60th birthday and a set of cufflinks presented by her to him on another birthday, are for sale at Bonhams on September 28th in New Bond Street London. Bonhams is selling the contents of the late Lord Glenconner’s property, `Beau House’, St Lucia, on behalf of the Glenconner Trustees and Estate on Wednesday 28 September 2011 at 2pm in New Bond Street, London. The items from Princess Margaret, lots 85, 138 and 142, highlight the close links between the two families. Lot 85 is a silver novelty snuff box by John Donald, London 1976 in the form of a book, the cover engraved with a depiction of The Glen, the