Produced film of people contributing to war effort working in factories in US during World War II

Hourglass superimposed over two shots of men working with tools and machinery in factories / metronome superimposed over three shots of men working with tools and machinery in factory / CU hands on dial of clock going around rapidly superimposed over three shots of men operating machinery in factory / CU hands on dials of three clocks going around rapidly superimposed over men operating machinery on factory floor, over wagon pulled by horse and piled with hay in field, and over sparks from molten steel in factory / CU hands on dial of clock gong around rapidly, then stopping in shape of V / hands of clock in shape of V superimposed over US soldiers marching in formation / hands of clock in shape of V superimposed over US warplanes flying in formation overhead / CU large clock superimposed over man facing camera clapping his hands /CU hands on dial of clock going around rapidly superimposed over smoke rising from factory / CU man's hands as he draws on map / CU watch on man's wrist / two factory workers pulling lever on clock / woman getting drink from water cooler and looking up at clock above cooler / close shot of machine in factory making bullets / VS machine making bullets superimposed over soldier firing machine gun / CU hands on dial of clock going around rapidly superimposed over soldier firing machine gun, over farmer sticking pitchfork into hay, over shirtless man shoveling something, over soldier sticking bayonet on rifle into dummy, over crowd of factory workers walking past camera / CU clock pendulum superimposed over crowd of workers walking out of factory, over workers walking towards factory / factory workers punching time cards / factory workers pushing lever on clock / factory workers punching time cards / Note: exact year not known