A letter written by Captain Scott shortly before his death in the Antarctic is displayed on a photograph by Herbert George Ponting called 'The Castle Berg' at Bonhams' auction house in London, Thursday, March 22, 2012. One of the final letters written by Captain Scott, this is one of the highlights of Bonhams' forthcoming "Polar Sale: Scott and Amundsen Centenary", to be held on March 30. The letter, which is estimated at 100,000-150,000 pounds, (US$ 158,000- 240,000) was written to the financier Sir Edwin Speyer who had chaired the fundraising committee for Scott's expedition. (AP Photo/Kirsty Wigglesworth)