USS Preston (DD-19)- 9" Main Steam Stop Valve and Operating Gear - NARA - 117877308.jpg
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USS Preston (DD 19) 9" Main Steam Stop Valve and Operating Gear NARA 117877308, 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): 9" Main Steam Stop Valve and Operating Gear
commons
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プレストン
commons_translated
high gear coin-operated