Date: | |
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Description: | A man is on a walkway on top of a mechanical conveyor belt machine that is loading sand and gravel into the bed of a truck. A steam shovel is visible in th... |
Date: | 1938 |
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Description: | Front page of 4-page brochure with description of photographic rules. Features a photograph of a man standing on top of a dump truck holding a shovel, whil... |
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