USS Preston (DD-19)- Standard 9" Cast Steel Valves Pressures 101 to 300 Lbs - NARA - 117877232.jpg
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USS Preston (DD 19) Standard 9" Cast Steel Valves Pressures 101 to 300 Lbs NARA 117877232, 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 9" Cast Steel Valves Pressures 101 to 300 Lbs
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