Date: | 05 25 1942 |
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Description: | Two factory workers stand outside firing booths to conduct testing at International Harvester's 20 (Twenty) millimeter gun plant. Original caption reads: "... |
Date: | 05 25 1942 |
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Description: | A factory worker operates a vertical broaching machine at International Harvester's 20 (Twenty) millimeter gun plant. Original caption reads: "Vertical bro... |
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