National Geographic : 1944 Nov
U.S.Army Signal Corps, Official A Mine platoon of a U. S. Fifth Army Antitank Company Sweeps the Surf ofTerracina Beach, Italy They are looking for German Teller (antitank) and "S" (antipersonnel) mines. Teller mines are disks about a foot in diameter containing high explosives. Considerable pressure is required to explode them. Activated by a slight touch, "S" mines leap upward and spray 320 balls overaradius of some 200 yards (pages 522, 523).