caisson groove

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Drawing: Dry Dock Number 4, Granite and Concrete for the US Navy Yard, New York, New York, Expansion Joint, Conduit Brackets, Sump Struts, Stones for Caisson Groove and Test Pipe

Drawing: Dry Dock Number 4, Granite and Concrete for the US Navy Yard,...

Photographs of the Construction and Repair of Buildings, Facilities, and Vessels at the New York Navy Yard