USS Maine (ACR-1)- Gratings for Chain Lockers - NARA - 76058314.jpg
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USS Maine (ACR 1) Gratings for Chain Lockers NARA 76058314, USS Maine (ship, 1895), US National Archives series: Alphabetical Series of Ship Engineering Drawings, Images from the National Archives and Records Administration, US National Archives location: other, USS Maine (ACR-1): Gratings for Chain Lockers
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diffraction grating