Folder: S.F. Districts-Waterfront-Pier 48.
Note attached to photo: "COVERING THE WATERFRONT - SAN FRANCISCO: Reporters and photographers here (L) and a police squad car quietly await trouble - in form of bitter jurisdictional union dispute - in front of Isthmian Steamship Co. pier here. ILWU longshoremen have refused to work shifts. If they still refuse, the way is open for Isthmian to hire AFL longshoremen. Should this happen, ILWU is expected to block the AFL workers and the scene above will probably explode into Union violence."