Workers working on various construction projects and inside factories, machines at work and trains on tracks, 1940s

Tracking view of group of workers walking out of factory; workers working on ship, cranes and metal structures; panning view of airplane factory with workers; big smelter pouring liquid steel with sparks, man standing in the foreground; liquid steel traveling down the ditch; molten steel girder being cut and sparks flying; smoking train traveling toward and over the camera; hands pulling row of switches; railroad tracks switching and train rushes toward and past camera; close up of train wheels and gears traveling; two workers lifting boxes; three workers pushing round stack onto a truck