01119cam a2200313 a 4500007398209MiAaHDL20170109000000.0m d cr bn ---auaua880801s1988 dcuae f00010 eng dsdr-ucr.b17665218sdr-pur2790984sdr-umn000388866GPOGPOMvI-corRECLAMATION646-J-1I 29.84/3-7:1I2984371I 29.84/3-7:1(OCoLC)18332885Powers, Robert M.,1955-Substitute materials :replacing deteriorated serpentine stone with pre-cast concrete /Robert M. Powers.Washington, D.C. :National Park Service, U.S. Dept. of the Interior,[1988]8 p. :ill., 1 plan ;28 cm.Preservation tech notes,0741-9023 ;PTN-23. Masonry ;no. 1.Mode of access: Internet.Precast concrete.Historic buildingsConservation and restoration.Concrete masonry.United States.National Park Service.00739820919921101133106.020170109000000.020170110090915.02026-05-19T18:00:17Z2026-05-19T17:30:03ZSDR-UCRIII - MILLENIUMprepare.pl-004-007BKsdr-ucr.b17665218uc1SDRUCRuc1.31210024881284UC.b17665218UCUCR20260519googleuc1.312100248812841988pdbibUS fed docPURPUR20260223googlepur1.327540816623671988pdbibUS fed docUMNUMN20241209googleumn.31951002960837f1988pdbibUS fed doc