World War One. Testing gas masks before going into the trenches.
Location of events unclear - France?
British soldiers putting on gas masks with them a man in long white coat (scientist or doctor). Pan along row of men putting on or already wearing gas masks and goggles, some have their helmets on as well. Shot of the line of soldiers going into a brick building filing past the scientist in the lab coat. The scientist puts on his own gas mask.
Technology, equipment, chemical warfare, poison gas, safety, danger.
Modified WPA record.