USS Henley (DD-39)- Aux. Air & Circulating Pump 6 X 8 X 8 X 7- Horizontal Simplex Combined Air & Circulating Pump - NARA - 75841952.jpg
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USS Henley (DD 39) Aux. Air & Circulating Pump 6 X 8 X 8 X 7 Horizontal Simplex Combined Air & Circulating Pump NARA 75841952, USS Henley (DD-39), US National Archives series: Alphabetical Series of Ship Engineering Drawings, Images from the National Archives and Records Administration, US National Archives location: other, USS Henley (DD-39): Aux. Air & Circulating Pump 6 X 8 X 8 X 7: Horizontal Simplex Combined Air & Circulating Pump
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air pump circulating circulate horizontal section