Testing and demonstration of ordnance material in Bridgeport, Connecticut. Mark VIII tank of World War I tested in Bridgeport, Connecticut. Tank moves in high gear as it undergoes a speed test. It climbs down ramps and runs cross country. Tank moves on a forest road as a car follows it. (World War I; World War 1; WWI; WW1)
Testing and demonstration of ordnance material in Bridgeport, Connecticut. Mark VIII tank of World War I tested in Bridgeport, Connecticut. Tank smashes apple tree during a tree smashing test to test its traction power. Tank moves over a 14 feet obstruction trench from the flat side. Tank moves over a trench from mound side during a climbing test. Mark VIII climbs over a stone wall. (World War I; World War 1; WWI; WW1)
Testing and demonstration of ordnance material in Bridgeport, Connecticut. Mark VIII tank of World War I tested in Bridgeport, Connecticut. Tank moves down a slope to exhibit its rolling resistance and ease of control in stopping and turning. American soldiers gather around the tank. Tank moves across a mounted stone wall. (World War I; World War 1; WWI; WW1)
Ford Motor Company 3-ton two man tanks being tested near the Ford factory in Highland Park, Michigan. Tanks move up and down bumpy surface during a climbing test. Two tanks move down a slope. One tank becomes bogged down and cable breaks as second tank attempts to tow it. A second attempt is successful. (World War I; World War 1; WWI; WW1)
Men work at a smelting plant in United States. Men remove trolleys loaded with raw materials from a crane's hook and push them away. Smelting takes place at a high temperature as it gives out a fiery flare.
View of the famous Liberty L-12 engine of World War 1. It is a 27-litre (1,649 cubic inch) water-cooled 45° V-12 aircraft engine of 400 horsepower. (World War I; World War 1; WWI; WW1)
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