Guns at Fort Scott, The Presidio, California, are fired to test coastal defense in San Francisco, California, United States, during World War I. A 12 inch mortar of battery Stotsenburg is fired. An explosion occurs in water. Soldiers reload and fire it again. Another explosion occurs in water. A 12-inch gun mounted on a barbette carriage at Battery Saffold is fired.
The Golden Gates Naval guards of the U.S. Navy march in San Francisco, California during World War I. A board over the passing guards reads "Headquarters Naval Port Guard". Slate indicates that these U.S. Navy Golden Gate Naval guards' surveillance prevails over all arrivals and departures at the port.
Many U.S. destroyers of the Pacific fleet, tied up in San Francisco harbor, California during World War 1. One displays the Number 33 (USS Trippe) and another, the number 23 (USS Drayton). Aboard one destroyer, sailors tie lengths of hose into bundles as the ship is underway.
Group of striking United Railroads workers standing in sand at waters edge, waving their hats at the camera. Tents are visible behind them. They lift an object from the sand. View of railroad car damaged by rocks and other objects hurled by strikers. Ocean Shore electric railroad car on street in San Francisco. Passengers get on and off. The electric rail car moves down the street and turns following the track, as a police officer steps into the intersection. Model T car and truck seen behind officer. Ocean Shore railroad train with rough paper sign hung on its side, reading: "Municipal Special, 12th and Mission Streets." Men are hanging out the window over the sign and waving. Many get off the train and stand on the pavement.as the train pulls away