Flushwork
Flushwork is a technique using knapped flint that highlights the smooth black surface of flint, which can be framed in limestone. Flushwork is effectively the decorative use of knapped flint in conjunction with dressed stone to form patterns.
The Society for the Protection of Ancient Buildings (SPAB) in their online Glossary define flushwork as:
"The technique of setting knapped flints on the same plane (ie flush) with the face of dressed stone. Used to form decorative compositions in superior work. Two main types:
(i) Flint infilling between stone slabs mortared onto face of wall to create chequer patterns, bands etc.
(ii) Inlays of flint set into carefully shaped recesses in stone slabs, forming, for example, trefoil-headed panels or heraldic shields."
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