Foreword by Admiral Sir Max Horton. Undated; Author’s Acknowledgements dated 1948. Bright blue cloth-covered boards, blue and white dustjacket, gilt decoration to front board, gilt titles to spine, map across end papers, portrait of author as frontispiece, 21 other plates, Appendix showing Second Support Group U-Boat Record, 172 pages in all. Condition: Dust jacket soiled, and repaired at edges with translucent tape. Boards significantly bumped and rubbed along one edge. Contents clean and bright.