The phrase refers to a written historical account, specifically Volume IV, documenting the activities and experiences of the 449th Bomb Group during the Second World War. This unit was a component of the United States Army Air Forces, operating primarily in the European Theater of Operations.
Such a record offers invaluable insights into the strategic and tactical air operations conducted by the Group, including bombing missions, personnel experiences, and the overall contribution to the Allied war effort. These historical accounts serve as vital resources for military historians, researchers, and descendants of veterans who served in the 449th Bomb Group, providing a detailed understanding of their sacrifices and achievements.