Seismic retrofits include very discreet steel braces and stress rods within heritage ironwork

https://www.scribd.com/document/1038241182/Chimney-Crown-to-Shroud-Personalized-Metal-Security-for-Stonework-Long-Life-133789

Seismic retrofits include discreet steel braces and tension poles within heritage ironwork, reinforcing assemblies while protecting decorative accounts.