The graphic story explains why modern mortar should not be applied to historic brick walls.
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Knowledge Park Resource
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The graphic story explains how rust can be converted into a stable surface that can then be painted.
Knowledge Park Resource
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The graphic story depicts the effects of ground water irrigation on gravestones in western U.S. cemeteries.
Knowledge Park Resource
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This graphic story explains why original wood windows can outlast modern windows.
Knowledge Park Resource
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HPTC partners with the Stewards Individual Placement Program to provide training & hands-on experience in the preservation trades.
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