Contract No. 85, Manufacture and Delivery of Precast Concrete Steel Cylinder Pipe, Southborough, Framingham, Wayland, Natick, Weston, cracks in 7 foot pipe section developed under 375 lbs./sq. in. pressure, picture taken after test was finished, looking east, Natick, Mass., Aug. 11, 1939
Contract No. 85, Manufacture and Delivery of Precast Concrete Steel Cylinder Pipe, Southborough, Framingham, Wayland, Natick, Weston, cracks in 7 foot pipe section developed under 375 lbs./sq. in. pressure, picture taken after test was finished, looking east, Natick, Mass., Aug. 11, 1939
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Contract No. 85, Manufacture and Delivery of Precast Concrete Steel Cylinder Pipe, Southborough, Framingham, Wayland, Natick, Weston, cracks in 7 foot pipe section developed under 375 lbs./sq. in. pressure, picture taken after test was finished, looking east, Natick, Mass., Aug. 11, 1939
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Print in album volume MDWSC, Contract 85, Manufacture and Delivery of Concrete Steel Cylinder Pipe, Volume 2, Chief Engineer set