USS Preston (DD-19)- 6" By-Pass Valve for Main H.P. Turbine - NARA - 117877352.jpg
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USS Preston (DD 19) 6" By Pass Valve for Main H.P. Turbine NARA 117877352, USS Preston (DD-19), US National Archives series: Alphabetical Series of Ship Engineering Drawings, Images from the National Archives and Records Administration, US National Archives location: other, USS Preston (DD-19): 6" By-Pass Valve for Main H.P. Turbine
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