Short summary on: A huge plan of the Titanic used during a 1912 inquiry into the ship’s sinking has sold at auction for £195,000 ($243,000). Annotated with red and green chalk marks showing where ice was believed to have penetrated five water-tight bulkheads, the 33-foot (10-meter) long plan “is quite simply one of the most important and well documented pieces of Titanic memorabilia in existence today,” the auction house, Henry Aldridge and Son Ltd, said in a statement to CNN Monday. The Titanic was the largest ocean liner in service at the time, thought to be nearly impregnable. But it struck an iceberg in the Atlantic on April 14, 1912 and more than 1,500 people died in the sinking, shocking the world and prompting outrage over a lack of lifeboats on board.