USS Preston (DD-19)- 12 x 26 x 18 Vertical Simplex Beam Main Air Pump, Sheet 3 - NARA - 117877368.jpg
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USS Preston (DD 19) 12 x 26 x 18 Vertical Simplex Beam Main Air Pump, Sheet 3 NARA 117877368, 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): 12 x 26 x 18 Vertical Simplex Beam Main Air Pump, Sheet 3
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air pump vertical section high beam antlia