Still photo: Men standing near the nose of a Thomas-Morse S4C Scout aircraft (sometimes called a Tommy).
Still photo taken at an unidentified airfield, presumably in Italy. An Italian bomber aircraft parked on the airfield. Some hangar buildings in the distant background.
The Great Falls of the Potomac River in the United States. Banks of the river. A low river dam. High tension wires and a power sub-station in a wooded area. A stone wall and a building beside the river. Numerous views of the Potomac River and surroundings in the vicinity of the Great Falls.
A mining locomotive in the United States. A man working on the locomotive. The locomotive operates from overhead wire or lays its own wire gathering it up on the return trip by a motor-driven cable roller. Typically 300 or 600VDC. Likely a manufacturer's test track: dual gauge.
Coal mining in the United States. A machine on a railroad track. Men working on the machine. The machine is elevated and lowered.
A mine plant in the United States. Aerial view of the mine plant. Exterior of the building. Trees in the area.