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Rondout pressure tunnel. Placing concrete in excavated mud seam in the rock above the tunnel lining. Contract 12. July 20, 1911.

Rondout pressure tunnel. Placing concrete in excavated mud seam in the...

Picryl description: Public domain image of a basement, underground, lobby, free to use, no copyright restrictions.

Rondout pressure tunnel.  Section of steel interlining in place to reinforce concrete lining at a mud seam. Contract 12. October 20, 1911.

Rondout pressure tunnel. Section of steel interlining in place to rei...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description

J. A. Scriven Company - sole manufacturers of Scriven's Patent Elastic Seam Drawers.