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A soldier operating in the field during the 1940s uses orthotolidine to test whether the water he is purifying is ready to drink. (1940s)

R

By Rick Ray

  • Stock footage ID: 19894768
Video clip length: 00:55FPS: 29.41Aspect ratio: 3:2Editorial use only. Learn more
SD$65720 × 480MOV53.1 MB

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