Undated handout photo issued by HM Treasury of the side of a new one pound coin announced by the Government, which will be the most secure coin in circulation in the world, the new coin will have the same shape as the 12-sided pre-decimal three pence piece or ìThreepenny bitî. PRESS ASSOCIATION Photo. Issue date: Tuesday March 18, 2014. See PA story CONSUMER Coin. Photo credit should read: The Royal Mint/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder.