B-17Gs from the 352d Bombardment Squadron leave the ball bearing works at Turin, Italy  badly damaged in the wake of their attack on 24 July 1944. (USAAF Photograph)
United States Army Air Force
1944
Hess (2003), B-17 Flying Fortress Units of the MTO, Osprey ISBN 1-84176--580-5 (USAAF Photograph)