USS Preston (DD-19)- Standard 1 1-4" Composition Valve for Pressures from 0 to 300 pounds - NARA - 117877268.jpg
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USS Preston (DD 19) Standard 1 1 4" Composition Valve for Pressures from 0 to 300 pounds NARA 117877268, 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): Standard 1 1/4" Composition Valve for Pressures from 0 to 300 pounds
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