USS Maine (ACR-1)- Armored Gratings for Engine Room Hatch - NARA - 76605502.jpg
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USS Maine (ACR 1) Armored Gratings for Engine Room Hatch NARA 76605502, 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): Armored Gratings for Engine Room Hatch
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armored cruiser diffraction grating