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| Date: | 1941 |
|---|---|
| Description: | Men work in the meat processing room at Schwab & Company where machinery is powered by two International PA-50 power units and one PA-100 unit. |
| Date: | 07 25 1927 |
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| Description: | Men are working below street level in the foreground, standing on either side of a pipe. Another man is standing in the street behind an engine powering to... |
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