USS Preston (DD-19)- Standard 1 1-2" Composition Valve for Pressures from 101 to 300 Lbs. - NARA - 117877266.jpg
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USS Preston (DD 19) Standard 1 1 2" Composition Valve for Pressures from 101 to 300 Lbs. NARA 117877266, 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 1/2" Composition Valve for Pressures from 101 to 300 Lbs.
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