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PART_OF_THE_PLUMBING_AND_ASSOCIATED_EQUIPMENT_FOR_THE_SOLAR_HEATING_AND_COILING_DEMONSTRATION_PROJECT_AT_COLORADO..._-_NARA_-_557316.jpg

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PART_OF_THE_PLUMBING_AND_ASSOCIATED_EQUIPMENT_FOR_THE_SOLAR_HEATING_AND_COOLING_DEMONSTRATION_PROJECT,_FUNDED_BY_THE..._-_NARA_-_557315.tif

PART_OF_THE_PLUMBING_AND_ASSOCIATED_EQUIPMENT_FOR_THE_SOLAR_HEATING_AND_COOLING_DEMONSTRATION_PROJECT,_FUNDED_BY_THE..._-_NARA_-_557315.jpg

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