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Patching
In stone and masonry
= Using a compound to fill
voids or to replace chips and broken corners or
edges of cut stones or fabricated masonry units.
It is applied in plastic form; mixed or selected to
match the color and texture of the damaged unit.
Patching using repair mortar and carving
Then blending the color and texture
Patching materials and procedures may be
governed by national or local historic registration
of the building or monument.