lord Charles Best wrote the account ahead of duke of Waterloo . Told how duke of Wellington was almost killed by a cannon ball . Also recalled seeing Napoleon on horseback rousing his troops for battle . Letter expected to earn £ ##500 when it goes under the hammer in London .
Colonel Charles Best wrote the account ahead of Battle of Waterloo . Told how Duke of Wellington was almost killed by a cannon ball . Also describes seeing Napoleon on horseback rousing his men for battle . Letter expected to fetch £4,000 when it goes under the hammer in London .