Folder: S.F. Districts-Presidio-Armed Forces Day.
On back: "ARMED FORCES DAY REHEARSAL: A tank rumbles ashore from a landing craft during the dress rehearsal for the amphibious landings scheduled for the Presidio of San Francisco, Calif., May 19 at 10 A.M. and 3 P.M.; 15 may 1956; Photographer: Sfc John Gathings; Sixth Army Central Photo Lab; Presidio of San Francisco, Calif.".