Interior of the Propulsion Systems Laboratory (PSL) Cooler
Entrance to the Propulsion Systems Laboratory (PSL) primary cooler as seen from the test chamber exhaust section. (1/20/1959)
Image Credit: NASA/MARTIN BROWN
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https://www.nasa.gov/image-detail/grc-1959-c-49581/
Image CreditNASA/MARTIN BROWN
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