Boy lets his dog, 'Mike' loose on the banks of Elwaha River in Washington, USA. The dog jumps into the river to catch fish. The dog comes back to the boy with a salmon fish in mouth. Boy and dog with the catch.
Comparison tests being performed between a British Centaur tank, a British Cromwell tank, and U.S. M-4 tank at the Aberdeen Proving Grounds in Aberdeen,Maryland. The three tanks are rolled onto various types of surface such as concrete, mud and sand to compare their maneuvering capabilities.
Medium tractor on proving ground, Aberdeen. Medium tractor T-31 moves over muddy terrain. Tractor moves over terrain with and without 4.5 caliber gun on M-1 carriage.
Mortar carrier T-21 circles the field at Aberdeen proving ground. It moves over rough and level terrain. Soldiers open rear door revealing mortar. Soldier climbs into the carrier and inspects grenades and other equipment. (Note: The 4.2" M2 heavy mortar recoil was hard on the halftrack chassis so the T-21 was cancelled and never adopted.) (World War II period).
Picture of first U.S. President George Washington. Map shows location of the City of Washington DC. President Washington's home at Mount Vernon. View of Christ Church in Alexandria where President Washington worshiped. View of old house in Georgetown. View of Suter's Tavern. Map shows Major Pierre Charles L'Enfant plan of the Washington city, its topography and the growth of the city. Picture of Capitol building.
Mid air refueling experiments in January, 1929. A U.S. Army Air Service Douglas C-1 tanker plane, with hose trailing below it, flies above a modified Atlantic-Fokker C-2A named "Question Mark." The hose is let down to the Question Mark, where a crew member seizes it and makes a connection for fuel transfer. After transfer of fuel is complete, the crew member throws the fuel line off and it is retrieved by the tanker plane. The Question Mark lands at Metropolitan Airport, Van Nuys, California on January 7, 1929, and taxiis in to park. The crew members, including Major Carl A. Spaatz, Captain Ira C. Eaker, Lieutenant Harry A. Halverson, Lieutenant Elwood R.(Pete) Quesada, and Staff Sergeant Roy W. Hooe, all exit the airplane and gather under the wing with well wishers. The five crew members pose for photographs beside their airplane, the "Question Mark." Ground crew tows the aircraft with a tractor.
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