Often cited as the day that turned the tide of the Second World War, the epic story of the Normandy landings is being retold on a special edition commemorative £2 coin. Inspired by military maps, the coin depicts the enormous scale of the D-Day landings and Operation Overlord. The commemorative coin is available exclusively at royalmint.com, and can be purchased in Gold and Silver Proof, Silver Proof Piedfort and Brilliant Uncirculated finishes.   A South Wales designer has taken…